Can't add new user in lucid

[Tom H]

>>> I created a new user using System Administration Users and Groups but
>>> am unable to login as that user.  I get an authentication error.  I
>>> have tried creating several users and have double checked passwords
>>> but to no avail.

>>> In auth.log I see
>>> piglet gdm-session-worker[2554]: pam_winbind(gdm:auth): request
>>> wbcLogonUser failed: WBC_ERR_AUTH_ERROR, PAM error: PAM_USER_UNKNOWN
>>> (10), NTSTATUS: NT_STATUS_NO_SUCH_USER, Error message was: No such
>>> user

>>> In addition in what may be a related or separate bug if I try to
>>> change the password of the user fred using
>>> sudo passwd fred
>>> I get
>>> passwd: System err
>>> and in auth.log
>>> Mar 26 12:50:28 piglet sudo:   colinl : TTY=pts/0 ; PWD=/home/colinl ;
>>> USER=root ; COMMAND=/usr/bin/passwd fred
>>> Mar 26 12:50:28 piglet passwd[2666]: pam_winbind(passwd:chauthtok):
>>> valid_user: wbcGetpwnam gave WBC_ERR_DOMAIN_NOT_FOUND

>> Are you authenticaticating through winbind? (== are you authenticating
>> through an AD server?)

> Not that I am aware of, it is a standard desktop install of lucid beta
> 1 with updates.

Check the common-* files in /etc/pam.d for lines with "pam_winbind.so".