Windows Users:

1. Click on one of the icons to download wallpaper

2. Click with right mouse button on the image you saved to your computer

3. A mini menu window will popup - select and click "Set as Wallpaper"

4. The wallpaper should appear as the new desktop
    If not - refresh desktop screen

Mac Users:

1. Click on one of the icons to download wallpaper

4. Open the control panel "Appearance: Desktop"

5. Click remove picture and then click select picture

6. Load new wallpaper from where you saved the image on your computer