Desktop wallpaper does not change

Archived from groups: microsoft.public.windowsxp.customize (More info?)

I am having troubles configuring my desktop.

I'm trying to use a .bmp image as my wallpaper. It works
at first, but when I then select the "Appearance" tab and
change the color scheme, the desktop image is replaced by
a solid background color.

I've tried working in the reverse order. First I change
the color scheme, and then I select a new wallpaper
image. This works until I restart my computer, when it
goes back to the solid color.

Funny enough, when I open up the desktop properies menu,
under the "Themes" tab, it still shows that I've selected
the .bmp image to be my wallpaper.

Anyone have any thoughts? Help is greatly appreciated!