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• Accidental deletion of the Gmail (IMAP) Trash 'System Label' in Evolution

  - by user20635

  I am using 11.04 and Evolution 2.32.2 I accidentally deleted the Gmail (IMAP) Trash 'System Label' in Evolution. Because this is Gmail object and (not a label per say), it is not deletable in Gmail. Under my Gmail account settings, I have made sure that both, 'Show in Label List' and 'Show in IMAP' are checked. That being said, I cannot seem to restore this IMAP folder in Evolution. I deleted the affected mail account, re-created, restarted Evolution, and no change. Any thoughts? Thanks.

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• Can I have a computer with 2 physical HDs, & Dual boot option, one for Windows & one for Ubuntu

  - by Frank

  When my HD failed in my old computer with a dual core, I immediately went out and bought a new 6 core PC because I needed it for business and had to have an immediate solution. The old computer was otherwise a good computer. I don't want to spend a $100+ for a new operating system for the old computer because the Windows 7 Professional opperating system for the new computer will only allow one install. So, I decided to look and see if there were any free operating systems and found Ubuntu. I downloaded it and burned a live CD and would like to try it on the old computer. I found a 200 GB HD I can buy for $30 and the seller will format it any way I want. There are also other HDs available at a similar price. What I was thinking I would like to do is buy 2 HDs. Then I can have one formatted for Ubuntu 12.04 and install Windows XP Pro SP1 on the other HD for which I have the original installation CD. Then I would like to have a dual boot option so that when I power up the computer, I can choose whether to use Windows XP or Ubuntu. Is this possible? If so, how would I do it, that is, arrange it so a dual boot option presents itself on power up.

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• problem transferring Win 7 operating system hard drive to be used as external hard drive

  - by itserich

  Win 7 Asus MA479 8GB Ram hard drives are 500GB The operating system was a Caviar Green, and I tried to exchange it for a Caviar Blue. The Caviar Blue took the install correctly, but the Green, the prior operating system hard drive, will not allow itself to be used as an external hard drive. I use TrueCrypt and tried to format the Green and it freezes each time at the very end of the encyrption of the partition. I took the Blue out of the system and tried to encrypt it, and same problem. I think there must be something on the hard drive that shows it was a system drive and it causes a conflict. I have tried writing over the system hard drive to fully erase everything but that does not work, it still freezes. The drives will work in a different pc, i.e. other pc where it never was the system drive. The external hard drive is connected esata through Thermaltake. I have used TrueCrypt on various pc's for years including this Win7 with no problem. Thank you.

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• Abstract skill/talent system implementation

  - by kiliki

  I've been making small 2D games for about 3 years now (XNA and more recently LWJGL/Slick2D). My latest idea would involve some form of "talent tree" system in a real time game. I've been wracking my brain but can't think of a structure to hold a talent. Something like "Your melee attack is an instant kill if behind the target" I'd like to come up with an abstract object rather than putting random conditionals into other methods. I've solved some relatively complex problems before but I don't even know where to begin with this one. Any help would be appreciated - Java, pseudocode or general concepts are all great.

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• Inventory management system design problem

  - by Steve F

  What are the conventions for item batch identifiers in inventory management systems? For example: A retail supermarket can order 'Item X' from either 'Supplier A' or 'Supplier B'. When it completes an order for the item from either supplier, it needs to store the record of the receipt. Inventory quantity for the item is increased upon receipt of the order. However it is also required to store some record of the supplier. Thus some sort of batch identifier is required. This batch identifier will uniquely identify the item received and the supplier from whom it is received. A new batch is created each time items are received in stock (for example, after an order). Hence, for purposes of accounting / auditing, information available to identify an item after it was sold comprises of ITEM_CODE, ITEM_NAME, BATCH_CODE. The BATCH_CODE is unique and is associated with DATE_RECEIVED, SUPPLIER_CODE, QTY_RECEIVED. Is this a complete system specification for the above scenario or has anything significant been left out?

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• How do I make a simple level system?

  - by ROROX

  I've been learning programming for a while and things are slow but steady. I only have a couple experiments that look something like a game (JavaScript,HTML5,CANVAS). One of the things I would like to establish this early in my process though is a basic level system to my games. I'm thinking like Atari, NES type simple. mainMenu , level1 , level2 , ... Later I'll work on including such screens as; titleScreen , pause , highScore. But for now just looking for the basics. Any good articles/tutorial links would help. Or just a snippet of code I can look over. Thank you kindly :)

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• Where to after a year of java? [closed]

  - by avatarX

  I've just finished a my first year of programming Java at varsity and I have a three month break. In terms of my development would it be better to: Cover Java in more depth to acquire a more intermediate level of ability Learn a new programming language (if so which) to a similar level as my current Java ability Spend timing learning introductory discrete maths, algorithms and data structures I'm also open to any other possibilities that would be beneficial but that could be covered in about 3 months.

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• booth multiplication algorithm

  - by grassPro

  Is booth algorithm for multiplication only for multiplying 2 negative numbers (-3 * -4) or one positive and one negative number (-3 * 4) ? Whenever i multiply 2 positive numbers using booth algorithm i get a wrong result. example : 5 * 4 A = 101 000 0 // binary of 5 is 101 S = 011 000 0 // 2's complement of 5 is 011 P = 000 100 0 // binary of 4 is 100 x = 3 y = 3 m = 5 -m = 2's complement of m r = 4 After right shift of P by 1 bit 0 000 100 After right shift of P by 1 bit 0 000 010 P+S = 011 001 0 After right shift by 1 bit 0 011 001 Discarding the LSB 001100 But that comes out to be the binary of 12 . It should have been 20(010100)

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• Very slow system after installing 13.10?

  - by Roeland

  Just "upgraded" from 13.04 to 13.10 on my Acer C7 Ubuntu'd Chromebook and first thing I noticed is that everything is very slow and unresponsive. Hardly had this on 13.04. Opened system monitor to check processes and I saw that compiz is consistently using 20-80% of my CPU, even on idle. I tried installing Compizconfig, but it doesn't start up at all. This is the final release, not a beta. How can I make it more responsive - like it should be?

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• Simple Hierarchical Clustering Implementations for C#?

  - by Joshua Smith

  I need a C# library that can do hierarchical single/complete link clustering. It's for a BSc final year project and I can't find any free implementations. I'd be happy to port a small(ish) Java project to C#, but most of the Java implementations are contained within huge libraries that have 30+ algorithms. The problem with large libraries is that one has to port 50% of the entire library due to dependency fanout. I'd be extremely grateful if anyone knows of any free single/complete link clustering implementations for C# or a small Java implementation of either! By the way, as I am a student, it may be possible to ask for an academic/research license from commercial companies.

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• Need to find a find a fast/multi-user database program

  - by user65961

  Our company is currently utilizing Excel and have been encountering a series of issues for starters we have multiple users sharing this application. We utilize it write our schedules for our employees and generate staffing levels. May someone give me please or inform me what are the pros and cons of this program and offer suggestions for another database that allows multiple users to share and also give the pros and cons need something that will hold massive data and allow sharing, protecting capabilities.

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• not being able to access any sudo function on my pc

  - by explorex

  Hi, I am not being to access any functions in my desktop and I don't have an OS besides Ubuntu 10.04 Lucid Linux and I am new to ubuntu. I think I rebooted my computer thinking that Google Chrome crashed. I opened Google Chrome but it showed opening message but never opened so I restarted my computer. and when my system was loading ('i was playing with keyboard dont know what I typed') and when by ubutnu loaded, I was unable to access anything some of characteristics are listed below I cannot hear any sound I cannot access wired ethernet connection on the right corner where I usually enable to access interne and I have no internet. There is no local apache server either. when ever I try to start apacer I get setuid must be root or something. When I type sudo then I get message setuid must be root. I cannot access orther external storage devices like pendrive and portable hard drive and cannot mount my other drives with FAT32 filesystem. When I try to start my apache webserver with out typing sudo then I get message cannnot open socket or something like it. EDIT:: i remember also doing command chown -R www-data / earlier and got error message EDIT:: and i cannot shutdown my computer, it only logs off

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• Estimating costs in a GOAP system

  - by fullwall

  I'm currently developing a GOAP system in Java. An explanation of GOAP can be found at http://web.media.mit.edu/~jorkin/goap.html. Essentially, it's using A* to plot between Actions that mutate the world state. To provide a fair chance for all Actions and Goals to execute, I'm using a heuristic function to estimate the cost of doing something. What is the best way to estimate this cost so that it is comparable to all the other costs? As an example, estimating the cost of running away from an enemy versus attacking it - how should the cost be calculated to be comparable?

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• How to automatically restart Tomcat7 on system reboots?

  - by coding crow

  I have installed Tomcat 7 on Ubuntu 12.04 LTS which run on an Amzon EC2 instance. Now I wish tomcat should restart automatically on system reboot. I read this blog which suggest adding below script to /etc/init.d/tomcat7 # Tomcat auto-start # # description: Auto-starts tomcat # processname: tomcat # pidfile: /var/run/tomcat.pid case $1 in start) sh /usr/share/tomcat7/bin/startup.sh ;; stop) sh /usr/share/tomcat7/bin/shutdown.sh ;; restart) sh /usr/share/tomcat7/bin/shutdown.sh sh /usr/share/tomcat7/bin/startup.sh ;; esac exit 0 and issue the following commands sudo chmod 755 /etc/init.d/tomcat7 sudo ln -s /etc/init.d/tomcat7 /etc/rc1.d/K99tomcat sudo ln -s /etc/init.d/tomcat7 /etc/rc2.d/S99tomcat sudo /etc/init.d/tomcat7 restart My Questions The tomcat7 already has script in it, where do we have to paste the suggested script? Is the suggested procedure correct?

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• windows system (bootloader) partition accidently deleted during multiple installs

  - by S.Y.T.

  After experimenting with multiple variations of backtrack and xbmcbuntu variations of Ubuntu with dual boot successfully, my windows partition became unrecognizable to grub. I used my windows boot CD to try to correct the problem. However, I deleted all partitions except for the NFTS one that contains my old windows install. (And, merged all other ones into that in hopes of getting back to the windows boot loader and out of grub) Now, all I get is a grub command prompt when I try and boot the system (how??? - I thought I deleted grub) And, now the windows boot disc doesn't even recognize the install. I've tried TRK to try and resolve the problem. Though I must admit ignorance in correctly using this utility. I've searched for other answers to this problem. Any help would be much appreciated. S.Y.

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• How can I format my active hard drive to NTFS?

  - by Ghost

  Believe it or not, I'm not too happy with Ubuntu. Well, let me rephrase that. I like it, but the only thing I don't like about it is that it's too much of a hassle to get a game to work. I'm trying to install Windows 7 with a 4GB flash drive, but my error that comes up is that my hard drive I'm trying to install on is in ext4. I need to format it to read NTFS. I can't seem to find any topics on how to format an active hard drive. I found a topic that explains how to move Ubuntu to a new drive, but it's a bit confusing to me. Please help! (Please don't disregard this topic just because I want to go back to windows)

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• Would opencv be a good choice for image colour summarization?

  - by codecowboy

  I would like to analyse a set of hundreds of thousands of product images (clothing, electronic goods etc) and retrieve the dominant colours in each. I'm only interested in the top 3 or 4 colours. The aim is to achieve a degree of certainty that x image is mostly red or image y is mostly orange and blue. The images are likely to be colour jpegs of reasonable quality and approximately 100kb in size. I would like to use C# and the solution should run on a Linux server, preferably using open source libraries. Would opencv be a good choice for this? What other libraries or specific algorithms might be helpful?

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• How can I optimize my development machine's files and directories? [closed]

  - by LuxuryMode

  Like any programmer, I've got a lot of stuff on my machine. Some of that stuff is projects of my own, some are projects I'm working on for my employer, others are open-source tools and projects, etc. Currently, I have my files organized as follows: /Code --/development (things I'm sort of hacking on plus maybe libraries used in other projects) --/scala (organized by language...why? I don't know!) --/android --/ruby --/employer_name -- /mobile --/android --/ios --/open-source (basically my forks that I'm pushing commits back upstream from) --/some-awesome-oss-project --/another-awesome-one --/tools random IDE settings sprinkled in here plus some other apps As you can see, things are kind of a mess here. How can I keep things organized in some sort of coherent fashion?

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• Making a Living Developing Games

  - by cable729

  I'm in my last year of high school, and I've been looking at colleges. I'm taking a C++ class at a local community college and I don't feel that it's worth it. I could have learned everything in that class in a week. This had me thinking, would a CS degree even be worth it? How much can it teach me if I can learn everything on my own? Even if I do need to learn more advanced subjects, many colleges put their material online AND I can buy a book. Will companies hire me if I don't have a CS degree? If I have a portfolio will I stand a chance? What kind of things are needed in the portfolio? I want to live doing what I love - programming. So I will do it. I'm just not sure that a CS degree will do anything to me. In addition, if there is a benefit to getting a CS degree, what places are the best?

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• Rebuilding system databases in 2008 R2

  - by TiborKaraszi

  All my attempts so far to rebuild the system databases in 2008 R2 has failed. I first tried to run setup from below path: C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Release But above turns out to be the 2008 setup program, not 2008R2 setup; even though I have no 2008 instanced installed (I have only R2 instances installed). Apparently, the 2008 setup program does a version check of the instance to be rebuilt and since it is > 10.50.0, the rebuild fails. Books Online for R2 the section...(read more)

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• Combining a content management system with ASP.NET

  - by Ek0nomik

  I am going to be creating a site that seems like it requires a blend of a content management system (CMS) and some custom web development (which is done in ASP.NET MVC). I have plenty of web development experience to understand the ASP.NET MVC side of the fence, but, I don't have a lot of CMS knowledge aside from getting one stood up. Right now my biggest question is around integrating security from ASP.NET with the CMS. I currently have an ASP.NET MVC site that handles the authentication for multiple production sites and creates an authentication cookie under our domain (*.example.com). The page acts like a single sign on page since the cookie is a wildcard and can be used in any other applications of the same domain. I'd really like to avoid having users put in their credentials twice. Is there a CMS that will play well with the ASP.NET Forms Authentication given how I have these existing applications structured? As an aside, right now I am leaning towards Drupal, but, that isn't finalized.

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• Starting with JMF

  - by Fasih Khatib

  I have recently downloaded JMF and don;t know where to start. Most online resources begin directly with programming and give no background of the JMF classes what so ever. So, I was planning on using a book or something that would give me ground-up knowledge of JMF. However, the books available on Amazon are of 1980's and 1990's. Can you please suggest any good books or references? Books preferred. Note: There was this one 2011 book available that was a print-on-demand collection of wikipedia articles on JMF but I decided not to opt for it because wikipedia articles should not be sold for money

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• In wow 6.0 expansion, where to buy wow gold?

  - by user50866

  Rs3gold.com is a leading provider of MMORPG virtual currency and other assets around the world, when is the new world of warcraft expansion, you can buy cheapest wow gold from Rs3gold. 8% discount code for your World of Warcraft Gold - RS3GOLD Once your payment on our site is completed successfully, we will deliver your WOW gold instantly within 10-30 minutes! http://www.rs3gold.com/Gold/wow_us.aspx  

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• Can all code be represented as a series of Map / Filter / Reduce operations?

  - by Mongus Pong

  I have recently been refactoring large chunks of code and replacing them with Linq queries. Removing the language bias - Linq is essentially a set of Map / Filter and Reduce operations that operate on a sequence of data. This got me thinking, how far would I theoretically be able to take this. Would I be able to rewrite the whole code base into a series (or even a single) of Map / Filter and Reduce operations. Unfortunately I get paid to do useful stuff, so I haven't been able to experiment much further, but I can't think of any code structure that couldn't be re structured as such. Side effected code can be dealt with via monads.. Even output is essentially mapping memory addresses to screen addresses. Is there anything that couldn't be (theoretically) rewritten as a Linq query?

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• Triple monitors on hybrid video system GeForce+Intel

  - by v_mil

  I use Lenovo Ideapad Z580A with hybrid video: GeForce+Intel with Ubuntu 12.10 x64 Ukrainian. It has internal display and two outputs: HDMI and VGA. When I connect third display to VGA all displays go black. Pressing alt+backspace and login causes output to two displays: internal and VGA. System Settings - Displays (or monitors - I have Ukrainian interface) shows three displays: two are on, one (DVI) is off. Turning DVI on and pressing apply causes an error: Can not set configuration of controller CRTC 65. BIOS setting is Optimus (two video cards). Driver for GeForce is Nouveau. With best regards. Viktor.

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