I've been working on migrating a customer from an NT4 domain to a 2003 AD. My primary plan was to follow the general consensus on this site. I created an NT4 DC, promoted it to PDC, upgraded it to 2003, and created the AD. At that point, I loaded a new Dell with 2003, installed AD and sync'd it to the upgraded box. After doing the transfer to the new box, I'm in possession of a three headed monster. It seems that the FMSO shift didn't happen clean, and the Global Catalog didn't shift. The Administrator account on the "new" box is unable to make changes to the system (licensing, AD, Event Viewer, etc) and my backdoor admin account can.
Any thoughts as to what might have happened? Is it possible the domain has a problem? Should I just migrate the domain using ADMT instead?
My secondary concern relates to the XP systems in the field. I do not want to have to visit each system, and my assumption is that I may have to if I do a change from COMPANY domain to COMPANY.LOCAL AD.