This cab fixes the wallpaper for 11-19 21877 2.5M.
Install and reset. Go to settings tab/personalize/home tab wallpaper/animated wallpaper and make your selection.
Thanks to these posts:
http://forum.ppcgeeks.com/showpost.p...postcount=3264
http://forum.ppcgeeks.com/showpost.p...postcount=3166