Windows:
* Click on the resolution for your monitor.
* After image loads in the new window, right-click on the full-size image and select "Set As Wallpaper".
OS X:
* Click on the resolution for you monitor.
* After image loads in the new window, save the full-size image to your hard drive. Click and hold over the image-then select "Download image to Disk" or "Save This Image As".
* Open your Appearances Control Panel and select desktop tab.
* Click "Place Picture, locate and select the image you just downloaded.
* Click "Set Desktop".