I had to rebuild my domain server. I have one workstation that does not have a trust relationship with the domain, so I need to log in to the workstation itself. Unfortunately, I get the message above that the administrator account is disabled. So I cannot log into the machine to add it to the domain. When I try the guest account, I get the same error.
The machine is a home built one. I tried booting with a recovery disk and got the same message. I am completely stumped and fear that I need to rebuild the machine. It DOES have a working version of Windows XP that I can log into and connect the domain, if that can be of any help.