Here is Cooper's wallpaper he has made:
960x663
please excuse the "MetaCreations" cover on my pictures
(I use a demo of 'Bryce' because I can't afford the real version)
640x480
 800x600  960x720  1024x768  1152x864  1600x1200
640x480  800x600  960x720  1024x768  1152x864  1600x1200
640x480  800x600  960x720  1024x768  1152x864  1600x1200