We run roaming profiles for our 26 W2kSP2 MFXPeFR1 servers under Active Directory but use local Group Policies. Everything works fine for Group Policy settings for roaming profiles but something is causing duplicates of the NTUSER.dat file to be created as a prf#.tmp file and left in the root of the user's profile. This tmp file is a copy of the NTUSER.dat and is getting carried with the roaming profile when the user logs off. In successive logons additional tmp files are created with different #'s so the profile grows in size. It requires a purge of all prf*.tmp files in the roaming profile share at least once a week. The MS Knowledge Base has nothing in it and our MS/Citrix consultant hasn't seen it before either. This only started when we implemented MS AD some months ago. Nothing has worked so far. Has anyone seen this or know how to trouble- shoot it?