Systems Management

I have created numerous scripts to edit the registry setting to set the wallpaper displayed when users on an Active Directory domain lock their workstations. I can get the script to work successfully and apply...for about 30 seconds.

I've tested it and see that desktop applies.. I wait a few seconds and press Ctrl-Alt-Del to lock the system and it goes back to the standard desktop theme background color and no wallpaper. I've checked the other GPOs and they don't have any settings for wallpaper to overwrite my scripting. Any idea how I can determine what's happening?

Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Control Panel\Desktop]
"TileWallpaper"="2"
"Wallpaper"="C:\\WINDOWS\\standardwallpaper.bmp"
"WallpaperStyle"="0"
"OriginalWallpaper"="C:\\WINDOWS\\standardwallpaper.bmp"

[HKEY_USERS\.DEFAULT\Control Panel\Desktop]
"TileWallpaper"="2"
"Wallpaper"="c:\\WINDOWS\\standardwallpaper.bmp"
"WallpaperStyle"="0"
"OriginalWallpaper"="c:\\WINDOWS\\standardwallpaper.bmp"