1) Take a screencap of your desktop
To cap a desktop:
2) For PC: Press "Print Screen" (prt sc) button
For Macs: Shift+Apple+3
3) Open your graphics program-o-choice
4) Press CTRL + V or go to "edit & paste
5) Save image as a JPEG
6) Upload the screen cap to your image server.
7) Reply to this entry with A LINK TO your screencap. Along with any explanations you feel are necessary.
8) Post your cap in YOUR LJ along with these instructions.
This everyone's computer though, I have a different picture on my own, but no internet connection and I can't be bothered getting a disk and bringing it down!