Ok, this may be the wrong area to post this question. I'm working from an NT4 domain trying to access a 2003 domain they're trusted. The Pre-Windows 2000 Compatible mode is set (I even went so far as to remove the everyone group and re-add the group using command line just to make sure). Yet when someone tries to use SQL Enterprise Manager to register the SQL server it gives out a Null error. Anyone have any clues on this problem?