Currently, I am running AutoCAD 2000 on Windows NT as a server. I have 15 licenses. All my clients machines that are running NT or 2000 can run the program successfully. However, users with Windows ME receive an error message "FATAL ERROR: Security system (hardware lock or network license) is not functioning or is improperly installed". I have checked to see if there are any patches or any known issues, but I came up empty. Is there a registry entry that I need to add or anything of the such?