Hello all, we have joind Samba 3.0.9 to an AD-Domain which is running AD. All is working fine, acces to shares is granted, files are created, deleted. When we start off with assigning ACL's though, they just get ignored, and the User vanishes from the access list in the share manager. Server is Windows 2003, Client is XP Pro. Here is the error we get: Jun 30 13:56:05 w01abnfs07 smbd[17006]: create_canon_ace_lists: unable to map SID S-1-5-21-1291875906-2546917919-626822916-1122 to uid or gid. (I googled that one, nothing particularly related...) The whole thing seems odd, since Samba has already mapped SID to UID, when the files were initially created, not so ? I tried upgrading to 3.0.14 and 3.0.20, but no change, only different error-messages in 3.0.20 Any clues ? TIA Dan ---smb.conf---> [global] workgroup = WORKSHOP realm = WORKSHOP.LOCAL netbios name = WORKSHOP-FS security = ADS password server = tasv01.workshop.local #passdb backend = tdbsam username map = /etc/samba/smbusers log level = 3 passdb:5 auth:10 # desperate tries: force unknown acl user = yes map acl inherit = yes [sles9] path = /data/software-depot read only = No [homes] comment = Home Drives #path = /home/%s #write list = pawisda2 read only = No browseable = No valid users = %S ~