PC Users:
To find out your screen resolution, for Windows XP click on Start, Settings, Control Panel and Display, then click on the Settings tab; it's the value displayed in the Screen area box. For Windows Vista, it is Start, Settings, Control Panel, Personalization, and then "Display Settings".
Then on our download page, choose the screen resolution of the image that is closest to your screen resolution. When the image loads, right click on the image and select "Set as Background" from the menu. Voila!
Mac Users:
Choose the screen resolution of the image that is closest to your screen resolution. When the image loads, CTRL-click or right-click on the image and select "download to disk" from the menu, once downloaded open "system preferences", click on "desktop" and load the image as your desktop picture.