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Search found 310 results on 13 pages for 'lin xiangyu'.

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  • Why using Acrobat 10 resaving a PDF file that was 4MB will become 3MB?

    - by Jian Lin
    I had some PDF files and just try to open it and do some highlighting using Acrobat 10 (also called Adode Reader X)... After highlighting, I save the file (using a different filename), and now the file change from 4MB to 3MB... is it just compression? Or making the images have lower clarity? (thought I cannot see any difference). What is the reason? If it is just compression, then why wasn't it done before, as winzip technology is quite mature more than even 10, 12 year ago.

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  • ISA caching with no cache-related info in response header

    - by Mike M. Lin
    From the documentation, I can't figure out what criteria an ISA server uses to figure out if a cached file is valid when no cache-related info is in the response header. Let's say I got this header in my response on Thu, 13 Jan 2011 18:43:35 GMT: HTTP/1.1 200 OK Date: Thu, 13 Jan 2011 18:43:35 GMT Server: Apache/2.2.3 (Red Hat) Content-Language: en X-Powered-By: Servlet/2.5 JSP/2.1 Keep-Alive: timeout=15 Connection: Keep-Alive Transfer-Encoding: chunked Content-Type: text/html; charset=ISO-8859-1 There's no cache directive, no last-modified field, no expires field. How will the ISA server decide for how long to cache this response?

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  • Does Win 7 still requires copying all files over before burning to a DVD-R or BD-R?

    - by Jian Lin
    It seems that Win 7 still needs to copy all files over to a folder, before it burns all files to the DVD-R or BD-R? I think since XP or Vista, Windows always copy everything over to a temporary folder before it will burn to an empty DVD-R. So if you just want to burn a 4GB file to an empty DVD-R, it will first make a copy of that file, and then burn it, instead of just burning it without making a copy first. And now on Win 7, it seems like it is the case also? Most other 3rd party burning tools won't make an extra copy of the files first... Win 7 is the exception. Is there a way around it? (to avoid copying over 25GB or 50GB of data before burning)

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  • How to make the free Microsoft Virtual Hard Disk image to work with VirtualBox's simulated network c

    - by Jian Lin
    I have a Macbook Pro at work and installed the current VirtualBox (3.2.4) today. However, after using the VHD image for IE 7 on XP SP3 on this: http://www.microsoft.com/downloads/details.aspx?FamilyID=21eabb90-958f-4b64-b5f1-73d0a413c8ef&displaylang=en The Virtual Operating System (XP) just thought there is no network card provided by the PC (the virtual PC simulated by VirtualBox), even if I set up 4 network cards in Settings, as NAT, host only, etc. So the XP cannot browse any webpage at all... Does any integration package need to be added for VirtualBox to make it work and how? (is VirtualBox providing a "too advanced" network card so XP SP3 doesn't have the driver for it? thanks.

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  • Moving files from Public folder to C: takes a minute, even though they are same hard drive and same

    - by Jian Lin
    I have a big file, like 2GB, and would like to move it from Network -> Bookroom -> Users -> Public (this is the computer in the bookroom in the house) to c:\myfiles and they are actually on the SAME hard drive (and same partition). But copying still takes a minute or so? I thought if on the same hard drive and partition, then it is a "move" and it should take 2, 3 seconds only. that public folder also is \\Bookroom\Users\Public Update: Sorry, I actually mean "move" all the way... so it is not copy but move. So that's why I thought it should take 2, 3 seconds only.

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  • Windows 7 cannot burn a DVD-R at 4x or 8x? (it seems to have to use the MAX speed)

    - by Jian Lin
    Windows 7 is great to have the ability to burn an .iso into a DVD-R, but it seems like there is no way to change the speed to 8x or 4x? (so it may go "max", which is 16x) because some of my DVD drives cannot read data all the time if the disc was burned at 16x, that's why usually i limit it to 8x. also, some articles say that disc burned at 4x can last a longer time, so i am tempted to burn something at 4x sometimes. any method or hack that can make it happen?

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  • Copying files from Public folder to C: takes a minute, even though they are same hard drive and same

    - by Jian Lin
    I have a big file, like 2GB, and would like to copy it from Network -> Bookroom -> Users -> Public (this is the computer in the bookroom in the house) to c:\myfiles and they are actually on the SAME hard drive (and same partition). But copying still takes a minute or so? I thought if on the same hard drive and partition, then it is a "move" and it should take 2, 3 seconds only. that public folder also is \\Bookroom\Users\Public

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  • Is it possible at all to install Ubuntu 10.04 on Windows 7 (64-bit) using its Virtual PC?

    - by Jian Lin
    It was said that Win 7's Virtual PC is not suitable for installing Ubuntu 10.04... Is there any method at all that it will work? The following is the scenario I ran into: The first time Ubuntu 10.04 installation CD-R boots up, it asked for the Language, and "Install Ubuntu" and then the screen has vertical green bars and then the VPC just closed. The 2nd or 3rd time it booted up, there is no asking of Language or "Install Ubuntu" and just shut down the VPC, sometimes with vertical green bars. I even created another new hard drive and same thing happened. And created VPC 02, and same thing happened. Created VPC 03 with a fixed hard drive size of 60GB and same thing happened.

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  • Is a computer's DRAM size not as important once we get a Solid State Drive?

    - by Jian Lin
    I am thinking of getting a Dell X11 netbook, and it can go up to 8GB of DRAM, together with a 256GB Solid State Drive. So in that case, it can handle quite a bit of Virtual PC running Linux, and Win XP, etc. But is the 8GB of RAM not so important any more? Won't 2GB or 4GB be quite good if a Solid State Drive is used? I think the most worrying thing is that the memory is not enough and the less often used data is swapped to the pagefile on hard disk and it will become really slow, but with an SSD drive, the problem is a lot less of a concern? Is there a comparison as to, if DRAM speed is n, then SSD drive speed is how many n and hard disk speed is how many n just as a ball park comparison?

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  • I want to transfer what I see on iPad app to the PC, is there a way?

    - by Jian Lin
    I have an iPad app that shows some good picture, and I want to transfer some pictures to the PC so I can send them by email to other people. Is there a way to capture the screen and save it as PNG or JPG? Otherwise, is the only way to install an iPad SDK (software development kit) so that you have a virtual iPad on the computer and run the app, and then use screen capture program on the PC to do the capture?

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  • Is there a reason the partition tool GParted doesn't show a percentage finish number initially?

    - by Jian Lin
    I am using GParted more, and it seems to do a reliable work. I just wonder why if the tasks is to resize a 250GB partition to 190GB, and then create a new partition, the first 10, 15 minutes, there is only a blue bar moving left and right, but there won't be an indicator showing how many percent is done. Then after that 10 to 15 minutes, it does show 1:05:00 left to finish the job. Update: at first I thought there is no percentage or time remaining at all... but after waiting for 10, 15 mintues, it does show. I just wonder why it didn't show at first.

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  • The speed of copying a file from a PC to a USB Flash drive started at 30MB/s and decreased to 5.8 MB

    - by Jian Lin
    If I copy a 8GB file from the PC to a USB Flash Drive, the speed will start at around 30 MB/s... maybe 28 MB/s, and then gradually, after a minute, it will go down to 15 MB/s and finally settle down at 5.8 MB/s. But I thought if it is a hard drive, then probably there is the RAM cache and also the internal hard drive cache, and will make the copying of file from PC to hard drive appear fast at first. But for a USB Flash drive, there should be no internal cache for the USB Flash drive itself. Is there a RAM cache for it, so that's why the initial copying seems so fast?

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  • To Run Linux (Ubuntu) on Windows 7, is using Virtual PC one of the best ways?

    - by Jian Lin
    I need to try Linux (Ubuntu) and feel hesitant to install Ubuntu on top of a Win 7 machine to dual boot (might need to use Win7 and Ubuntu at the same time). Is creating a Virtual PC on Win7, and then installing the latest Ubuntu on that Virtual PC one of the better option? So I think I can create a Virtual PC with an empty virtual hard disk (vhd), say, for 30GB, and then put in the Ubuntu DVD-R or CD-R to install Ubuntu onto that empty hard disk. Update: for some reason, the first time Ubuntu 10.04 installation CD-R boots up, it asked for the Language, and "Install Ubuntu" and then the screen has vertical green bars and then the VPC just closed. The 2nd or 3rd time it booted up, there is no asking of Language or "Install Ubuntu" and just shut down the VPC, sometimes with vertical green bars. I even created another new hard drive and same thing happened. And created VPC 02, and same thing happened. Created VPC 03 with a fixed hard drive size of 60GB and same thing happened.

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  • Does Chrome use a different DNS server while Firefox and IE use a different one?

    - by Jian Lin
    Is the common set up for Chrome that it will use a different DNS server, while Firefox and IE will use a different one? My Chrome (including the one on the virtual PC) will sometimes "Resolving host" and wait there for 20, 30 seconds, while Firefox and IE won't. (so after 20, 30 seconds with a blank page, the page will finally not be able to load). So is there something that Chrome is doing that make the difference?

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  • On Windows 7, how to Shut Down the computer without the Update?

    - by Jian Lin
    Sometimes when my Win 7 machine has programs that crashed, maybe Firefox, or IE, I would like to shut down the computer without installing any Windows update. That's because I worry that if IE or Firefox crashed, the system is not in a very stable state, so I would rather install the update later. But it seems I only have 2 choices: 1) Shut Down and it always will do any Update 2) Restart, and no update is done (these are 2 choices among the shut down / log off option) So is there a way to Shut Down without doing the Update? Or must I restart first, and then do the Updates, and then Shut Down?

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  • Cannot delete movie on iTunes for iPhone 4?

    - by Jian Lin
    I was on vacation and took some videos, and now the iPhone 4 memory is near full. So I tried to delete other experimental movies I made using Handbrake, so that I can take more video or photos, but if I plug the iPhone 4 into my Notebook computer, I can seem to delete it on iTunes? Maybe because the computer I sync with the iPhone 4 is at home (a desktop), but not with me on vacation. I can't delete it on iTunes, can't delete it on iPhone itself. I am stuck during the vacation, or is there a way to handle it?

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  • Virtual PC on Windows 7 doesn't have adjustment for video card size?

    - by Jian Lin
    The current VirtualBox has a place where the video card size can be set by the user. It seems that Win 7's Virtual PC doesn't have one? Will it auto adjust -- but what if the screen size is 800 x 600 and the user resize it to 1600 x 1200, then the original video size may not be enough and will that cause any issue? I do sometimes see blinking random pixel region showing on the VPC's screen... maybe it is cause by not enough video RAM size?

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  • How to shut down the computer without the update on Windows 7?

    - by Jian Lin
    Sometimes when my Win 7 machine has programs that crashed, maybe Firefox, or IE, I would like to shut down the computer without installing any Windows update. That's because I worry that if IE or Firefox crashed, the system is not in a very stable state, so I would rather install the update later. But it seems I only have 2 choices: 1) Shut Down and it always will do any Update 2) Restart, and no update is done (these are 2 choices among the shut down / log off option) So is there a way to Shut Down without doing the Update? Or must I restart first, and then do the Updates, and then Shut Down?

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  • Any method to resize my app's window on Mac (macbook) to 1600 x 1200 or 1920 x 1200?

    - by Jian Lin
    I would like to make a screen capture for an app (Firefox), but I am using a macbook, so the display is at 1280 x 800. I think if I can somehow resize the window to 1920 x 1200, then I can use Command + Shift + 4 and then space bar, and then mouse click on that app to capture the whole app's window (which will be bigger than the screen) So I can resize the window horizontally to 1920 by dragging the window to the left, and then make it wider by going to the bottom-right corner of the window. But there seems to be no way to make it taller... even javascript: self.resizeTo(screen.availWidth+300,screen.availHeight+300); on the Firefox address bar (URL bar) won't work... it can make the window wider than the screen, but not taller. Is there any method at all?

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