If you are wanting to personalize your N800, one of the first things you will want to do is to change the background. You can either use a solid colored background with no image or your favorite digital photo, wallpaper, texture or tile.
With all applications either closed or minimized, follow these steps:
1. Click Home.
2. Click Tools and select Set background image.
3. If you do not want to use an image, set the Background color then select (none) from the Image dropdown. If you are going to use a background image, click the Browse button and go to the location that contains the image. Once selected, use the Mode dropdown to select from the following: Centered, Scaled, Stretched, or Tiled.
4. Click the Preview button to see how the new background will look.
5. Click OK.