When u install the SP1 it brands the desktop (I think Paint is the correct term). I have uninstalled (for a different reason) and can not get rid of the - Windows XP Home Edition For testing purposes only Buld xxxx - message. I have done the normal stuff including TweakUI, Tweak all, and even checked out the registry. We do have a theme installed... and deleting that didn't even help. Active desktop has been both on and off to no avail. Any other suggestions? Gord