I found the problem. I had installed the Windows Fax component (through an RDP session) on the server to get the Fax Driver installed and replicated through Citrix. Well, I don't know if I completely missed it or what but today when I got on the console of the server it was asking for the Win2003 SP2 disk to install some more fax components. After I completed all of that, it has been working like normal.