Hi, We are running samba 3.0.28 on RHEL 5 as a PDC serving around 1000 active users . This domain was vampired from aWindows NT 4 domain a few years ago. OpenLDAP 2.2.13 is used as the back end user database. One of the problems we have is that usrmgr.exe does not display any groups. I can use usrmgr to create users, delete users and create groups. But I cannot use it to delete groups or add users to groups. I am running usrmgr.exe version 5.1 Service Pack 3 on Windows XP SP3. On the server, "net groupmap list" lists the groups correctly. If I select a user from the usgmgr panel, it shows the user's primary group correctly but it does not list any groups to make this user a member of. I have googled around but did not find any thing helpful. I can post my configuration if that is needed. Thanks! John