I tried this, but no luck. When I log in as Administrator, the original problem is still there - I can't get a personal profile to load from the Welcome screen.
I've also loaded Last Known Good Configuration a few times, without success. Does this take one step further back every time it is used?
I think the problem is that Windows itself is running properly, but cannot find any of my personal profiles.
I've also tried booting to DOS from the XP CD-ROM, but don't know enough to go any further with the commands available. I'd settle for being able to copy my data files to a memory stick, and then reformat the system. I do have the files backed up, but they are over a week old.