Connecting to a remote server with RDP

I have many workstations with Vista that connect just fine to our server
with RDP. I just added a new Vista workstation and cannot connect no matter
what. Nothing on the server has changed. The id/pw still connects just
fine from other Vista workstations. On this Vista workstation I get:
"This computer can't connect to the remote computer.
Try connecting again. If the probelm continues, caontact the owner of the
remote computer or your network administrator."

I have compared ALL the settings in RDP. Not really that much in there.

Anyone have any ideas whats up. I can dup dozens of messages but not this
one.

John