[Samba] Problem loggin on to samba PDC

[cat]

Hi all!

How the heck do I log on to the samba domain? Every logon attempt is met with 

"The system cannot log you to to this domain because the system's computer 
accout in its primary domain is missing or the password on that account is 
incorrect."

A clients trust account was created using the authomatic adduser script and 
there are valid samba users . Connection using samba Workgroup works.

Please help!

Del