[Samba] authenticating against windows server 2003

[Owen, Mary]

I have a windows 2003 server and a SAMBA file server.

I appear to have joined the ads realm.  When I do a klist I have 3 tickets.
for krbtgt,kadmin,kdc server

from my SAMBA file server I can access all shares on windows 2003 machine.

When my 2003 clients try to access the samba file server they get the login
box.
It doesn't matter what you enter it will not allow access.  My windows 2003
server is also denied access to my SAMBA file server.

I have run out of ideas, so any ideas .......