We recently moved a WSS 3.0 farm from a Win2K3 server to a Win2K8 server. I was just told that Windows Server 2008 will only allow one remote user at a time. This means I can't be on the server at the same time as the network technician configuring the antivirus software. Making things even more interesting, when he logs on, it kicks me off with no warning (to either one of us). I miss Windows Server 2003 allowing three of us. Guess I have to plan a little more than I did before.
UPDATE: 09/15/09: Turns out the reason two people could not log in at the same time is that the "other user" was using my login credentials.