All Issues
24,993 verified issues
Joining two pdfs with slightly different page size with pdfjoin
I'm trying to merge multiple PDF files by using . However the joined PDF is not right beacuse orientation for some text is changed. I have checked all options of , enforcing orientation etc. but of no use. The two source PDFs have slightly different dimensions (595 × 842, 595 × 841) and should be m…
How to toggle Scroll Lock in Excel 2010 without a Scroll Lock key in the keyboard
I have a notebook with no Scroll Lock key (or any shortcut using the 'Fn' key). Somehow Excel 2010 got the Scroll Lock on. I see it left down in the status bar and now I can't navigate through cells using the arrow keys, which is pretty annoying. It wasn't turned on some hours ago, so I think I mus…
VT-x/AMD-V hardware acceleration not operational with VirtualBox
I am trying to install OS X with VirtualBox, on my Windows 7 laptop. I see the following error message: After this message, the boot fails with a critical error. I am using Lenovo X201 Tablet as the host machine. What should I check and how can I fix this?
Is there any way to boot Windows 7/8 using BIOS on GPT?
I'd like to know if there's a method to get Windows 7 or Windows 8 Developer Preview to install to a GPT disk on my traditional IBM PC BIOS setup. Windows 7, of course, rejects my GPT partition, because I don't have UEFI. Well, Debian and Grub 2 seem to work fine... So I want to know if there's a w…
How can I test if a USB thumb drive is fake?
I bought a 256GB USB stick for only $5 on eBay. I know: What could possible overwrite your sense of "hey wait a minute" as a technology person would make you think you could buy a 256GB flash drive for $5 I was asked many times already. However, I went ahead and ordered the item anyway and after sh…
Can't ping but can access internet just fine?
I'm wondering if anyone has ideas on this one, since it's a first for me. I can access the internet just fine with a browser, but using PING or TRACERT from a command prompt just shows requests timing out once they leave my network. To take some variables out of the equation, I tried reducing my ne…
Should I put *.sh and *.rb file extensions on all my scripts?
I have a bunch of hand-rolled executable scripts in my $HOME/bin directory. Some are written in bash, some in Ruby. All of them have the shebang line at the top telling the shell what interpreter to use (bash or Ruby, in my case). I'm wondering if it is better to put file extensions on these script…
Move a selection to specific X,Y position in Photoshop
How do I move a selection to a specific XY position within the canvas in Photoshop? Currently, the only way I can find is to just eyeball it with the guides and/or mouse position. I want to specify the exact X and Y coordinates.
What is naming convention for subtitle files?
I use VLC that automatically opens subtitles with same name as movie: But i wonder how should i name subtitles if i have more than one.
Why is "ipconfig" not recognized as an internal or external command?
Using Windows 7, on just one of my machines, typing in "ipconfig" no longer does anything. Is there a reason for this? My speculation is that it has something to do with java SDK installation / changing the system variables. The command and response: 'ipconfig' is not recognized as an internal or e…
Does 1 Gbit/s port in full-duplex mean 1 Gbit/s send and 1 Gbit/s receive?
I'm figuring out the best router for me based on their performance. When you have a 1 Gbit/s port in full-duplex, does that mean you can send 1 Gbit/s and receive 1 Gbit/s at the same time? Or is it 512 Mbit/s in each direction to sum 1 Gbit/s? For example, I got a router with 4 Gbit/s ports connec…
Is there a distinct advantage that a PS2 port has over a serial/USB port?
Silly question perhaps ... I'm told that PS2 technology dates back to the early 1990's or thereabouts. By and large, motherboard manufacturers still support PS2 technology/ports instead of providing an additional couple of USB ports for keyboard and mouse. Is there any distinct advantage that a PS2…
Windows 8 Defragmenter?
It seems like Windows 8's command has some new options, including: Perform slab consolidation on the specified volumes. Does anyone know what this means in English?
What is a kernel intrusion on my router?
I get a lot of "kernel intrusion" messages in my router's error log. Each one always shows the source IP, the destination IP (mine) and other details of the TCP connection. My Internet link has been dropping a lot lately, and quite often the log shows several of these "intrusions" immediately befor…
Is it possible to "return" to GRUB after booting Linux without restarting
I am dual-booting Windows and Linux on my SSD and find myself often switching between the two OSes. The SSD is really fast and both OSes boot in about 3 seconds once selected in GRUB. However, it takes forever (about 30 seconds) for my BIOS, RAID and second SATA controller to initialize before I'm …
How do I get yum to see updates to a local repo without cleaning cache?
I have set up a local yum repository which I use to install test builds. For the testing purposes, my packages are versioned by (e.g. The trouble is, once I make a new RPM, copy it to the repository directory and run , yum does not see the new RPM as being available. I can see the updates and grab …
How do I clear what I typed into the prompt?
I type a really, really long command into bash. Whoops, it was the wrong command. As of now, this means that I go through two hells: Realizing my command was useless. Having to clear my shell by holding down Backspace until the prompt is clear. Is there a faster way?
How do I set up Google Talk in Pidgin?
When I try setting up Google Talk in Pidgin. I get the message: Unable to Connect EDIT: (I have it working in Digsby fine) Here is my setup:
How do I search the content of 7-Zip archives (.7z)?
I am looking for a way to search the content of files inside of a 7-Zip archive (.7z) without having to unpack the archive. I have many 7-Zip archives with code inside them and I'd like to search them. Is there a way to do that?
Is there any benefit to activating VirtualBox’s solid-state drive setting on a spinning hard disk?
I noticed with version 4.1 that VirtualBox added a "Solid-State Drive" option in the storage section. I also know that Windows 7 will report free space differently for a solid state disk so that the disk can re-use those sectors in its built-in optimization. I'm wondering about turning this on even…