I recently changed a computer from the "WORKGROUP" workgroup to another workgroup called, "SUNSTONE". The computers login name was Administrator with no password. When I reset the computer, the computer no longer booted right into Windows 2000 professional. Now it's asking me for a username and password. The username was prefilled with "Administrator", which was the username before. I left the password field blank, because there wasn't one and it tells me the it's not able to log in. HELP! I didn't change from a domain to a workgroup, I changed from a workgroup to another workgroup. What can I do?