I have a small workgroup that has one Server 2003 R2 SP2 and three computers attached to the network. Two of the computers are windows xp pro sp3 and the other two are Vista Premium. All of the computers are able to access the internet with no problem and are able to access the server if I do \\servername\. My problem is that they get prompted for a username and password everytime. I have mapped a shared folder and are able to log into the shared drive if I type in the administrator password but after I restart any of these computers I see the mapped folder but with a red X. I have to access it everytime by putting in the administrator and password account. Any ideas?