XP Pro logon problem

[Guest]

My computer usually logs on to windows without going through the login
screen. However when i turned on the PC yesterday, the login screen suddenly
appeared (I didn't set for it to appear). I've never had any password for any
of the accounts but when I try to login with a "blank" password, I get the
error message "the system cannot log you on now because the domain <xxx> is
not available". This is a home PC and I have not set any domains.

I tried running windows in safe mode and tried to logon to the administrator
account (no password) but i still get the same error message. Is there anyway
I can login to my PC again without having to reinstall windows?

 

[Guest]

In my case I changed the network setting from domain to workgroup. Now I
can't logon to windows, I get the same error '...domain is not available'.

Have you fixed the problem, if yes how?