samba - May 2010 - Samba Windows Domain Member Server & Windows 7 Clients

Hello!

I have a problem with a Samba server on Debian Lenny, which I joined to my
Windows Domain using Kerberos and Winbind. Windows XP and Windows Vista users
can authenticate against Active Directory when accessing the Samba Server well,
but Windows 7 clients are always rejected, Windows is stating that the username
or password is wrong.

Did anyone have similar problems with Windows 7? (The Windows 7 PC is not joined
to the domain)

thanks