Hi! Well ,the upgrade to 3.0.7 on my Fedora Core 1 Box did not change the problem I described a few days ago. Samba 3.0.2 works fine with the NT4 Box I use to connect to with winbind. All the users are found and the permissions on my samba shares I offer the NT4 Box are the way I want them to be (well almost, says the windows admin). However after the upgrade it looks ok. BUT: getent passwd gets me: CENTRUM+Dummy:*:2011:2000:Dummy-User:/home/CENTRUM/Dummy:/bin/false However if I want to change ownership on a file, as in: [root@linux sambatest]# chown CENTRUM+gillian testfile chown: `CENTRUM+gillian': invalid user similarily with setfacl [root@linux sambatest]# setfacl -m u:CENTRUM+Dummy:rw- testfile setfacl: Option -m: Invalid argument near character 3 After a downgrade to 3.0.2 on my FC1 box everything is fine again. Any idea what could be wrong? It's the same phenomenon as with Samba 3.0.6 Many thanks in advance, .peter