Maximus, just pick your favorite wallpaper and on your PC and save it four times as wallpaper1, wallpaper2 etc. Then create the desktop file mentioned on the bottom of this page (http://nokia-n900.com/n900-backgroun...r-by-yourself/) and use the same names you used for the wallpapers. Then dump all 5 files (4 wallpapers and 1 desktop file) in your images folder on your N900. Now when you go to change background you will see the name of the file you created there. Hope this helped.