Well, you probably had to save the wallpaper somewhere in order to put in on your desktop, right?? Did you try deleting the wallpaper wherever you saved it? Send it to the recycle bin AND also delete it from the recyle bin.
Did you try right clicking on the desktop, go to "properties," click on the "desktop" tab, and pick a "background"??? That should work....try doing it again if you already have tried it once. |