User Name Not Dislayed

I accidentally turned off display of user name in Tweakui. Now when I restart XP, on the "click your user name" screen, no user name is displayed. So I can't go any further in XP.

Help!

Thanks,

Malcolm

I can't get into XP. Maybe that wasn't clear in my message. It goes no futher than the logon screen.

However, I realized I can boot XP in safe mode, so my problem's solved.