not able to remote desktop to server

I remote desktop all day long, however, I have two servers that won’t allow me to get in. Both are 2003 r2 standard window servers. I am a remote desktop user and it is checked that I am allowed to remote into the server. The error I get is you must be a member of desktop users (which I am ) or terminal services must be on or configured. (which I don’t need) help amy ideas?????