I have multiple users all running the same setup connected to an Exchange 5.5 server. I have a few systems that can't connect to the server using their credentials, but can using the admin logon, but that doesn't help them with their e-mail. Some systems have a logon, domain and password block that come up, but it won't let anyone in with anything typed there. Has anyone had simular problems and how did they resolve them. We have their computers, user name registered in a Win 2K domain and the same user name as their e-mail id in Exchange. Please help!!!!!