I have a scene as wallpaper in KDE on Mandriva 2006. With no wallpaper, the
desktop is plain blue.

Somehow, an earlier wallpaper loads last thing then disappears from view.
On logout, it is visible after the current wallpaper is removed and before
complete shutdown.

Where is this being created?

If computers get too powerful, we can organize them into
a committee.
-Author Unknown.