Desktop Background (wallpaper) HIJACK

[BLUE SKY THINKER]

Got any bright ideas, anyone?.....

(XP Pro) Control Panel > Display > Desktop (tab) > Background.

I note, courtesy of a passing website, an advertising image within this list. I don't have to use it, I know (plenty of other options) but its arrival and subsequent residence irritates me. Even more irritating is my failure to evict it!

I've tried all the obvious:-

Not found in Windows folders, under 'Wallpaper'.
Search of hard drive, under its name Internet Explorer Wallpaper, fails to reveal anything via 'file' or 'word' search.
Likewise, no luck under Search for JPEG, BMP, GIF or TIF file. I know there are more, but which ones?
(Admittedly brief) web search for solution proves fruitless.


.....Thanks, in anticipation.