Open your file in photoshop (or any photo editing program).. then save as windows BMP.
They only listed files from C:\WINDOWS\Web\Wallpaper folder ... try to copied your files to that directory.
Just a Thought..
if you can see and enjoying your wallpaper or Screensaver, then most certainly you didn't use the PC... its better if you turn off the PC... and enjoy your real life with your real friends.
Have a nice weekend
when I select a different wallpaper than what is provided by Microsoft, even though it is a *.bmp image, it first isn't displayed in the preview box in the display dialog box but even though it is then displayed on screen after I select "apply"... when I restart XP, the wallpaper reverts back to what it was before.
is there a file format problem? why cannot I chose whatever wallpaper I desire?