[Samba] Migration succesful , but can't add machine to domain

[LanRol]

Hi all,

I migrate NT4 PDC to SAmba3 tdbsam backend. All users, groups, machineboxes
are ok.

When I am try to add Win2k to domain, popup the a windows, I type the DOMAIN
ADMIN username, password, and I get a failer message:
Bad user or password.

I think my samba doesn't know where is passwd.tdb

in my smb.conf:
        passdb backend = tdbsam:/etc/samba/passdb.tdb

Any idea what is wrong?

regards, roland