I have a Windows NT4 PDC and am trying to force a Windows xp pro workstation to join the domain controlled by my win nt4 pdc. On the win nt4 pdc, I did add in "user manager for domains" the user/password account I use on the win xp workstation. Still on the windows NT4 PDC, in SERVER MANAGER, I did add successfully the windows XP computer as a Windows NT workstation (only option available for my win xp workstation). Then from the win xp computer, I went to System properties, then "Computer name" tab, and I clicked on the CHANGE button. Under "Member of", I checked DOMAIN and I did mention the domain name. Windows XP confirmed that I was part of the domain with the pop up "Welcome to domain xyz". Then win xp rebooted, but when logging on to the domain from the win xp computer, I get error "Windows cannot connect to the domain, either because the controller is down ... (which is not the case, because the other workstations have access to the domain and both the win xp computer and the windows NT 4 pdc are seeing each other via network neighborhood/or windows explorer) ... or because your computer account was not found (On the win Nt4 pdc, in "Server Manager", the win xp computer is there....but if I double click on it, it says that the trust relationship between the win nt4 pdc and the win xp workstation failed....even if I succesfully selected the win xp pc from there and chose the option JOIN DOMAIN).... I am really out of options and would appreciate your help. Thanks

here Is a page that suggests mapping a drive. and enabling netbios over tcp/ip You probably have tried microsoft resources page here MSI 845e mb 768 mb ram and a p4 2.4n running xp ,win 2000 advanced server and win 98 SE alot to learn and I know so little !!!!