Active Desktop fix recovery

Active Desktop white screen, "restore active desktop" retrieves a script error referencing Desktop.htt

Fix:
right-click, Properties
Desktop, None
[Apply]
find c:\documents and settings\current username\application data\microsoft\internet explorer\desktop.htt and rename/delete it

Change the picture in Desktop. Active Desktop error is gone.

Here is another link with a registry adjustment (in the comments) that seems to work.