I run an office and we have a Server - client Network we setup active directory users and computers and installed all attributes for terminal services. The problem I'm having is trying to connect one of the computers running windows XP Pro. in the office to the server using Remote Desktop Connection and its logging into the server log on screen but says Invalid User name and or password. When i log in that same user on a vista machine or windows 7 machine its working fine. Can someone help?