Well I'm hoping someone can shed some light on something for me. I've been customizing the installations we do for Windows XP in order to change the color of the user's desktop background from the default blue to another color. The problem is that this seems to only be working about 90% of the time, as there are times when it doesn't seem to be taking effect (I'm using a script so there's nothing being skipped or done differently on the different machines). What I'm doing is attempting to change the "HKEY_CURRENT_USER\Control Panel\Colors\Background" registry key for new users (I don't care about existing users on the machine, just new ones for now). So I'm going in and changing the "background" key for the "HKEY_USERS\.DEFAULT\Control Panel\Colors" section, as well as loading the registry hive for the "C:\Documents and Settings\Default User" account and changing it in there too (unloading the hive when done of course). Once in awhile, when I do this it doesn't take. A new user will log in and the default blue color will still show up within the "HKEY_CURRENT_USER\Control Panel\Colors\Background" key. This happens for every new user on the machine. So on MachineX it works just fine, but on MachineY every new user still gets the blue background. Can anyone tell me if there's any other spot this thing may be coming from? I've tried searching the registry for another "background" registry key and come up empty. Is there some other hive I have to load and edit? Thanks!

First question is; Are all machines the same hardware configuration? If all machines don't share the same capability, results may vary. It's a good day when you learn something

Yes, all machines are Dell OptiPlex GX260s, running the exact same OS image.