01: Take a screencap of your desktop.
To cap a desktop:
1) Press "Print Screen" (prt sc) button (or Apple+Shift+3 to screen capture if you have a Mac)
2) Open your graphics program-o-choice
3) Press CTRL + V (or Apple+V if you have a Mac)
4) Save image as a JPEG
02: Upload the screen cap to your image server.
Don't have one yet? Use Photobucket. Or Imageshack.
03: Reply to this entry with your screencap or a link to your screencap. Along with any explanations you feel are necessary.
04: Post your cap in YOUR LJ along with these instructions.
Ron is my favorite character in the HP books (or, he might come in second after the twins, but still... Counts!) and I fell in love with this background the moment I saw it. Can't wait 'til the new book comes out! Yay!
The desktop itself was made by hecatesknickers and can be found here.
ETA: Ha(again)! I just realized I couldn't even follow the instructions properly. Tsk tsk. I saved it as an .png image. *shakes head*
My key-chain's bum smells like Coke, by the way.