Wallpaper for Windows XP VIA GPO

Hi all,

I had created a new GPO for making a default wallpaper on all the systems. The Cilent are of Windows XP, Windows Vista and Windows 7.

The GPO is working on Windows vista nd Windows 7. In windows XP systems default wallpaper will appear only at logon, log off and system is locked and the rest of the time i get a White desktop background.

These are the setting which is set.

Enable Active Desktop                     Enabled

Desktop Wallpaper                           Enabled

Allow only bitmapped wallpaper         Disabled

My AD envirnoment is Windows 2008 R2.

Please help

Thanks -Sumanth