Hello to all. I have 5 CentOS 3.4 (RHEL AS 3) boxes running Samba 3.0.13-1. They have been joined to ADS; the PDC is a Win2k3 box. I've been running this successfully for a while now. However, this morning, I added SP1 to the Win2k3 server, and now my Samba boxes are all messed up (wouldn't ya know). Where previously I had files and directories that might have ownership of HEADQUARTERS\Administrator and group ownership of HEADQUARTERS\Domain Users (or some other existing user or group on the Windows server, those have "magically" been replaced by uid and gid numbers. When our users try to access these files or directories, they're prompted for a uname and password, none of which work. If I try to change ownersip and group ownership back to where I had them, the systems say that user and group that I try to use are invalid names. This despite the fact that I get correct values when I run "wbinfo -u", "wbinfo -g", and "getent passwd". I've got to get us back to square as quickly as possible. Can anyone help? Many thanks. Dimitri