Running samba1.8.p10 on an ICL DRS6000 (SVR4 alike). I have no problems with encrypted passwords and security=user mode However, when I change to security=server mode, I get messages in the log saying K75_1_ITS-PDC-NT rejected the session password server is not connected NT Password did not match ! Defaulting to Lanman and as such, I have to log in as normal. I have username mapping enabled. My NT admins tell me that they have enabled the PDC to act as a validator Any suggestions gratefully received... Nick Hindley