Previously ran Samba 2.2 as PDC without roaming profiles. Upgraded to Samba 3 and managed to migrate domain SID. logons, etc without problem. Again, always using local profiles. Next, discovered net groupmap and tried assigning NT groups to unix groups, eg: net groupmap modify ntgroup="Users" unixgroup=staff Now seemingly at random, users local profiles on the machines get completely deleted on logout. I've checked all usual settings, on smb.conf and in the xp registry, but nothing seems to shed much light. My suspicion is that its the XP permissions not being sufficient to be trusted on the PC or something. As I said, all worked perfectly before, local profiles created and maintained on PCs, now they get deleted at will. Any help very gratefully received. -- Jason Sadler GeoData Institute University of Southampton