Hi Everyone, I have recently start receiving the following error message when attempting to join an XP client to the domain: ---- The following error occurred attempting to join the domain "<domainname>": Access is denied. ---- This was working. I have been trying to retrace my steps to determine the cause of this error. I was able to reproduce the error message on our test server after I modifyed the Domain Users group by typing: net groupmap add s=<sid>-513 ntgroup=Domain\ Users unixgroup=domainusers type=domain After that command was added, I began getting this error. I have since tried deleting, rebooting, stop/start samba. No effect. I am currently running Samba as a PDC on Mac OS 10.4.3. Samba version 3.0.10. This server is also my OpenLDAP Master (if that helps). I used the net groupmap command to try and rebuild the mapping for Domain Users. When I try to add Domain Users to the Local Administrator group, I receive the following: ---- "Information returned from the object picker for object "<username>" was incomplete. The object will not be processed." ---- I can add individual users, but whenever I try to add any group I get this message. Any thoughts or suggestions, Thanks for replys. -- Dominique