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• I removed my WinXP machine's association to U1 from within the Windows client, and now can't get it back to work anymore

  - by Andrea

  After testing the windows client for U1 sync, I decided to test the preferences' settings, and tried to remove the association for the WinXP station from which I was working. Now I can start the client, but if I try to open the preferences' settings the application stops. I tried to uninstalle and reinstall, but that won't change the situation: appearently the old settings are kept the same even after a total reinstall.

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• How do I revert the Plymouth theme back to default after purging Kubuntu?

  - by Pezhman Karimeh

  I recently installed the KDE Kubuntu desktop but after somehow working with i decided to use pure GNOME Ubuntu desktop again.I remove Kubuntu desktop and its packages completely but Kubuntu background image still running at time of booting the system and shutting down it. I tried the steps below at terminal , it made the shutting down background image correct but still the background image of booting time is kubuntu image. sudo update-alternatives --set default.plymouth /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth How could i change this image to the default Ubuntu image too?

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• How to Fight Back Against Cyber Stalking That Occurs on Myspace?

  There are are literally thousands of different areas on the Internet that seem to be very handy for cyber stalkers to lurk around in. This causes many people to wonder if any of the social networking... [Author: Ed Opperman - Computers and Internet - May 24, 2010]

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• How to get GUI back after freeze interrupted an Nvidia driver update?

  - by Reinere

  I just went through a driver update. The OS froze, so I had to hard reboot the PC. Now I just get the login prompt in terminal. So, I tried to run startx. codeError: API mismatch: the NVIDIA kernel module has version 304.43 but this NVIDIA driver Component has version 295.49` I just got this error. I have to type sudo su then modprobe ndiswrapper to get my Wi-Fi to work, so step by step instructions after that would be greatly helpful.

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• How do i reinstall windows back on to linux without flashdrive or cd?

  - by user287536

  I know this is for ubuntu. but elementary os and ubuntu are really similar, so any answers or instructions will work on this os. plus the people here at ubuntu are alot better with these kind of problems. I've installed elementary os, and i am somewhat satisfied. However, many of the addons and applications i used to use are incompatible with linux and wine doesnt work with these apps that work with drivers and plugins. My recovery hp partition was replaced by the grub partition somehow. i dont' have a cd or a working flashdrive. i have found many links, but i dont understand the instructions to a full level. ive heard that you can create a partition, extract your windows iso there, and then boot from it. i have done the first 2 steps, but i dont know how to boot from a certain partition. i know how to with command prompt, but not with terminal and/or grub. Please help? im a noob in linux, ive only installed it for a month

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• I am one step closer to installing ubuntu, back is grayed out and I was stupid enough to not make a backup

  - by user283544

  Ok, so yeah, i've been stupid enough not to make a backup and 1 step closer to installing ubuntu. What I need is that is windows totally safe and not gonna be touched I made a new partition from windows, and in ubuntu installer I chose "Something else" Then I chose that partition as an ext4 and mount "/" Device for bootloader is my hard disk, /dev/sda/, that's what keeps me a little aware. So I need a quick answer is my windows 7 gonna be touched?

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• Want Amarok 1.4 Back in Ubuntu? Here is how!

  <b>Tech Drive-in:</b> "Amarok was my favorite among Linux media players, until Amarok 2.0 series started coming in. I totally understand that Amarok 2.0 series is a complete rewrite and I really appreciate the effort they have put on upgrading Amarok."

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• If you had to go back and re-learn your skill set, how would you do it?

  - by vorbb

  My younger brother is looking to start programming. He's 14, and technically-inclined, but no real experience programming. He's looking to me for guidance, and I don't feel as if my experience is enough, so I figured I'd ask here. He's more interested in web programming, but also has an interest in desktop/mobile/server applications. What would be a good learning path for him to take? I'm going to buy him a bunch of books for Christmas to get him started; the question is, what should he learn, and in which order? The way I see it, he needs to learn theory and code. I'd like to start him off with Python or Ruby or PHP. If he wants to get in to web, he's also going to need to learn HTML, CSS, Javascript, etc. Out of those three domains (Languages, Theory, Markup/Etc.), what is the best order do you think to learn in? Also, am I missing anything? Thanks!

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• Want to back up using dd, but my present ubuntu installation is 149.04 + 3.81(swap) GB, my target drive is only 149.05 GB

  - by Shreshth

  My netbook is a Windows7-Ubuntu 12.04 dual boot. in gparted the strcture looks like Partition filesystem size /dev/sda2 extended 152.86GiB __/dev/sda6 ext4 149.04GiB __/dev/sda5 linux-swap 3.81GiB /dev/sda3 ntfs 100MiB /dev/sda4 ntfs 145.13GiB /dev/sdb1 fat32 149.05GiB I want to backup my ubuntu 12.04 installation that is sda2 (sda6 + sda5) to sdb1. As you can see sda5 +sda6 is 152.86 GB where are sdb1 is only 149.05 GB. Can I backup only sda6(149.04GB) without losing any data? That is to say, will I be able to restore my ubuntu using only sda6 and later add the needed swap? Edit: Made it readable.

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• Putting the Con (COM1, LPT1, NUL, etc.) Back in your URLs

  One annoyance that some developers have run into with ASP.NET MVC is that certain reserved filenames are not allowed in URLs. The specifics of this restriction are accounted for in an interesting blog post entitled Zombie Operating Systems and ASP.NET MVC. This actually wasnt a restriction on ASP.NET MVC but was built into the core of ASP.NET itself. Fortunately, ASP.NET 4 fixes this issue with a new setting. In web.config, simply add <httpRuntime relaxedUrlToFileSystemMapping="true"/> to...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Setting navigationItem.leftBarButtonItem - why does it hide my back arrow button ?

  - by gotye

  Hey guys, When I do this : // --------------- SETTING NAVIGATION BAR LEFT BUTTON activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0.0,0.0,25.0,25.0)]; [activityIndicator sizeToFit]; activityIndicator.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin); UIBarButtonItem *loadingView = [[UIBarButtonItem alloc] initWithCustomView:activityIndicator]; //loadingView.target = self; self.navigationItem.leftBarButtonItem = loadingView; [activityIndicator startAnimating]; // --------------- It hides my back arrow button (the one I use to get back to the previous controller) ... why is that ?!? How am I supposed to add my activityIndicator next to my back arrow ? (i already used titleView and rightbarbuttonitem) Thanks a lot, Gotye.

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• Can you manually add to an iPhone/iPad Navigation Bar a back button item?

  - by MikeN

  I have a reference to a "UIBarButtonItem", is there a way I can add a custom "Back Navigation Button" to that item when it is not part of a Navigation based view? I can add a left button: UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"Custom Back" style:UIBarButtonItemStylePlain target:self action:@selector(backAction:)]; menuItem.backBarButtonItem = backButton; //This doesn't seem to work. menuItem.popOverNavigationItem.leftBarButtonItem = backButton; //This shows a normal button So how could I make the leftmost button look like a back navigation button?

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• How to Detect Forward and Back Mouse Button Events in Delphi?

  - by EagleOfToledo

  If a mouse has other buttons in addition to the standard left/right/middle (e.g. forward/back), how can we detect those button clicks in Delphi? An example of how this is used is the Internet Explorer, where the forward/back button on the side of a Logitech or MS mouse cycles forward and back between any loaded web pages. This seems to replicate the Backspace/CTRL+Backspace on the keyboard but I tried to detect that using KeyPreview and the KeyPress event but it does not pick it up. Any idea how to detect clicks on these extended mouse buttons?

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• Does Flickr "Know" if a Hotlinked Image Does Not Link Back to Source?

  - by Michael Robinson

  From Flickr's community guidelines: "Do link back to Flickr when you post your photos elsewhere. The Flickr service makes it possible to post images hosted on Flickr to outside web sites. However, pages on other web sites that display images hosted on flickr.com must provide a link from each photo back to its photo page on Flickr." Our company currently allows image hotlinking for user-uploaded images. It turns out that this has been more popular than we had expected, and I would like to capitalize on this if possible. We will be altering the guidelines to include a clause similar to Flickr's, quoted above. As hotlinking costs us, both in terms of server load and bandwidth, we would like to get at least something out of it, other than merely a warm feeling inside. My question: Does Flickr "know" if a hotlinked image does not link back to its source? Bonus: if Flickr knows, how?

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• How can I transition from a front-end career to back-end career?

  - by jexx2345

  Hello, In 2004, I received my B.S. in Computer Science using mostly Java for programming. Since then, I have been hired for purely front-end positions in large companies through recruiters, doing primarily HTML/CSS, Javascript/jQuery, and OOP Actionscript 3. While I definitely have respect for the front-end, and have learned much, I feel very unfulfilled and would love to move into back-end for the more complex programming I was doing in school. My target platform of choice is ASP.Net 3.5 (C#). With a resume that has absolutely no .Net or back-end experience, how can I transition into a junior back-end job? I am currently freelancing a .Net e-commerce site, and plan to build a portfolio showcasing some apps (e-commerce mvc, blog, etc), while learning the technology. Is having a Bachelors in CS enough or should I look into getting .Net certified? Is showing course-work still relevant to an employer even though it was from 6 years ago? Thank you

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• Does anyone has the experience of using the new p4 replicate command in their Perforce back-up /rest

  - by Thomas Corriol

  Hi all, we recently performed an upgrade of our whole perforce system to 2009.02 During this exercise, we noticed that the back-up /restore process that was installed here by the Perforce consultant a year ago was not completely working. Basically, the verify command has never worked (scary !). As we are obliged to revisit our Back-Up/Restore scripts, I was toying with the idea of using the new p4 replicate command. The idea is to use it alongside an rsync of the data files, so that in case of crash we will lose at worst an hour of work (if we execute them every hour). Does anyone has the experience or an example of back-up/restore scripts using the p4 replicate command of the 2009.02 version ? Thanks, Thomas

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• How to best work with a "forked" a git repo, and push some new features back to origin

  - by Jesper Blad Jensen aka. Deldy

  Hi all, I'm having a blog-project on GibHub, where a friend of mine, wants to base his code on. He will make some changes to some files that he do not wish to commit back to me (maybe stylesheets and images), but he will maybe implement a new feature that he would like to push back to my project. He should also be able to get new code from me, where he would like to get all new stuff. I've looked around, and it seams that Rebase is the way to go for him, to get updates from me, but how can he most easily push a feature back to me? (He is just learning Git, as well as me)

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• How do I Parse the response I get back from CURL?

  - by Daelan

  I'm sending some data to an external URL using Curl. The server sends me back a response in a string like this: trnApproved=0&trnId=10000002&messageId=7&messageText=DECLINE I can assign this string to a variable like this: $txResult = curl_exec( $ch ); echo "Result:<BR>"; echo $txResult; But how do I use the data that is sent back? I need a way to get the value of each variable sent back so that I can use it in my PHP script. Any help would be much appreciated. Thanks.

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• Split a string and join it back together in a different order?

  - by Xaisoft

  What is the most concise, yet readable way to split a string and put join it back together in a different order. For example, I want to split the following string: 10-20-30-4000-50000 and I would do this via: string[] tokens = original.Split('-'); and now I want to put it back together in this order: 30-20-10-4000-50000 I know I can use Join to put it back together in it's original form, but I don't want that. The only thing I can think of right now is: string modified = string.Format("{0}{1}{2}{3}{4}",tokens[2],tokens[1],tokens[0],tokens[3], tokens[4]); I realized that if I do: string modified = string.Format("{2}{1}{0}{3}{4}", tokens); it does not keep the dashes which is what I want so is to do that, should I just do: string modified = string.Format("{2}-{1}-{0}-{3}-{4}", tokens);

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• How to add "Back to top" link at bottom at <div> is browser window is shorter than page, using jquer

  - by metal-gear-solid

  How to add "Back to top" link at bottom at is browser window is shorter than page, using jquery? <div id="mainContent"> <p>Some content</p> </div> If some content is bigger than browser window ( I mean if vertical bar comes on the page) then i want to add Back to top just before closing the div. <div id="mainContent"> <p>Some content</p> <p>Some content</p> <p>Some content</p> <a href="#"> Back to top </a> </div>

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• How many bits for sequence number using Go-Back-N protocol.

  - by Mike

  Hi Everyone, I'm a regular over at Stack Overflow (Software developer) that is trying to get through a networking course. I got a homework problem I'd like to have a sanity check on. Here is what I got. Q: A 3000-km-long T1 trunk is used to transmit 64-byte frames using Go-Back-N protocol. If the propagation speed is 6 microseconds/km, how many bits should the sequence numbers be? My Answer: For this questions what we need to do is lay the base knowledge. What we are trying to find is the size of the largest sequence number we should us using Go-Back-N. To figure this out we need to figure out how many packets can fit into our link at a time and then subtract one from that number. This will ensure that we never have two packets with the same sequence number at the same time in the link. Length of link: 3,000km Speed: 6 microseconds / km Frame size: 64 bytes T1 transmission speed: 1544kb/s (http://ckp.made-it.com/t1234.html) Propagation time = 6 microseconds / km * 3000 km = 18,000 microseconds (18ms). Convert 1544kb to bytes = 1544 * 1024 = 1581056 bytes Transmission time = 64 bytes / 1581056bytes / second = 0.000040479 seconds (0.4ms) So then if we take the 18ms propagation time and divide it by the 0.4ms transmission time we will see that we are going to be able to stuff ( 18 / 0.4) 45 packets into the link at a time. That means that our sequence number should be 2 ^ 45 bits long! Am I going in the right direction with this? Thanks, Mike

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• Hard Disk:S.M.A.R.T. Stas BAD, Back up and replace

  - by Nick

  I have an laptop top hard drive I was trying to use to my new media computer. The case is small and can accommodate for 2 2.5" drives, no 3.5" drives. I had been using the hard drive as storage hard drive until now. When I go to install Windows on the hard drive first I'm prompted at the bios of: Hard Disk:S.M.A.R.T. Stas BAD, Back up and replace. And then again in the Windows Setup, informing me that the hard drive is bad. So I did a full format of the drive and tried again. Same error. So I took it out and hooked it back up to my other computer via an Sata usb adapter kit (maybe the cause?). The hard drive is recognized fine and when I scanned it for errors by going: right click -> properties -> tools -> error checking It returns that the hard drive is fine. I have tried 3 different SATA cables and multiple jumpers. When I plugged in my 1.5 tb 3.5" drive the computer that gives me the S.M.A.R.T. error on the 2.5" drive, recognizes it with no problems. Any ideas on why this is happening and how I can fix it?

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• Why does hiberfil.sys come back from the dead on Windows 7?

  - by Corey White

  I have Windows 7 running on a small (40GB) partition, with 4GB ram. This means that the hiberfil.sys file created by Hibernate takes up a significant portion of the available diskspace. I would like to remove it. I am aware that I can disable Hibernate and remove hiberfil.sys by entering powercfg -h off in an elevated command prompt. This works -- the file is immediately removed, and after doing so, the HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Power\HibernateEnabled key is (correctly) set to 0. However, the next time I reboot the PC, hiberfil.sys returns from the dead, Hibernate is reenabled, and that registry key has returned to 1. I'm pretty much at my wits' end with this. Almost everything I can find online related to removing the hiberfil.sys file simply suggests using powercfg to turn off hibernation, and that appears to work for just about everyone. But it just keeps coming back for me! (Like a vampire, sucking up my disk space.) I did find one other thread from someone who seems to have had the same issue, but none of the suggestions there worked for the original poster (or for me). Still, I have tried everything listed there, including: Disabling hybrid sleep Disabling Hibernate through the command prompt, through the Power Options GUI, and through both (in both orders) Manually changing the HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Power\HibernateEnabled key Pretty much everything else I can think of! I do want to reiterate that I have no problem removing the file -- that works great. It just comes back after every reboot. I'm about ready to throw in the towel and just run a script on login to disable Hibernate each time, even though that seems like a crazily hacky "solution" . . . but I was hoping someone here could suggest something else, first. Thanks!

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• How can I get Windows 8 to automatically disable touch when I am using my Wacom pen and turn it back on when I am not

  - by Robert

  I have an HP convertible tablet computer which I just upgraded to Windows 8. The problem (which existed under Windows 7 as well) is that this tablet has both a capacitive touch screen (with multi-touch) AND a wacom-type tablet built in to the screen that works using electro-magnetic resonance with the provided stylus. My Use Case: Most of the time I am happy using my fingers and the touch interface for navigation and whatnot. However, when I want to get down to serious note-taking/drawing, I want to use the wacom functionality. The problem is that any comfortable writing position has me resting my arm/hand on the screen, which activates the touch technology (despite supposed palm-detection algorithms) and completely screws up my input paradigm. My Ideal Solution: Ideallly, since wacom technology senses when the pen is "close" to the screen, I would love to have touch be automatically disabled whenever the wacom pen is detected, and turned back on when it is out of range. this would allow me to seamless switch between the two input methods, and since I NEVER want to use both at once would work perfectly for me. An acceptable alternative: As a next best option, It would be great to be able to turn off the touch functionality (leaving the wacom in place) whenever I entered specific apps (e.g. OneNote, Photoshop, Gimp, Pencil, etc.) and then have it turn back on when I left that app.... As a worst case at least lets me use my PC option: If I could create a shortcut (tile or otherwise) that flips the touch on and off without going all the way through the nested computer settings, that would be better than nothing. Thanks in advance for the help with 1 or more of the above.

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• At what point does the performance gap between GPU & CPU become so great that the CPU is holding back a system?

  - by Matthew Galloway

  I know that generally speaking for gaming performance the GPU is the primary factor which holds back performance, with everything else such as RAM/motherboard/PSU/CPU being secondary in importance to the graphics card. But at some point the other components ARE going to be significant in holding back the whole system! For instance nobody would be silly enough to play modern games with 512MB RAM and the very latest graphics cards (such as an HD7970) as I bet the performance increase over such a system with only 512MB but a mid range card would be non-existent! Thus it would be a "waste" for such a person to buy any high end graphics card without resolving first the system's other problems. The same point applies to other components, such as if it only had a Pentium II a current high end graphics card would be wasted on it! So my core question is how do you determine at what point for your system is spending on extra GPU power be completely "wasted"? (also, a slightly more nuanced question is trying work out at what point might the extra graphics power not be "wasted" but would be "sub optimal" value for money, when the expenditure should then be split around graphics card and other components. As obviously a gamer shouldn't always just spend on upgrading the graphics card! But needs to balance it out)

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