For Windows users:

1. Click on the resolution that your monitor is set at. (If your resolution isn't shown, choose the closest size.) A new page will appear with just the wallpaper image.
2. Right click on the image, and a menu will appear.
3. Choose "set as wallpaper" or "set as desktop background".

For Macintosh users:

1. Click on the resolution that your monitor is set at. (If your resolution isn't shown, choose the closest size.) A new page will appear with just the wallpaper image.
2. Move your cursor over the wallpaper image, hold your mouse button down until you see a menu and select "Save This Image As."
3. In the dialog box that pops up, choose where you'd like to save the image (we suggest your desktop for now).
4. Go inside your apple menu to control panel, and select "appearance."
5. In appearance, select Desktop, then click "place picture."
6. Select the wallpaper file you saved and click "choose." Select "position automatically."
7. Click "set desktop".