Server 2003 RDC Issue

Hey,

Im having problems with my Server 2003 machine. Each day, the machine decides to allow a user to get past the login screen, then crap out on them, without even getting to the load user prefs screen. Each time it is a different user, regardless of priviledges or local/remote. Rebooting the server seems to fix it for the most part, however, my users use this machine to access our production/account management software as well as their Exchange emails, so it can’t really be rebooted every day when it decides to fail on one user, because it affects everyone elses productivity.

Any ideas on how to fix this? Kicking the server is my next “troubleshooting” step.