For some reason, the wallpaper settings in properties on desktop has been blanked out. The wallpaper cannot be accessed even though all the wallpaper files are still visible.
Attached screenshot:
One you could take a look at there is found in the display properties under the "customize desktop" button seen in desktop tab. Once there click and open the "web" tab to see if the active desktop is or something tried to set that active. You may be seeing a blank page.
