[Samba] starnge Auth problem in w2k Domain with ADS

[Christoph Scheeder]

Hi,
my Situation:
a w2k-server set in mixed mode as ADS-Server,a debian machine with
latest stable samba compiled self with ADS-support.
samba machine joined to ADS-Domain succesfully, winbindd installed and
configured, all w2k users and groups visible on samba-server.
Browsing and connecting to w2k-server and samba-server from the samba
server with smbclient and -k option works fine for all accounts in the
w2k-domain and the localy on the samba server defined users.
If i try to access the samba server from a w2k-client in the domain i
get a prompt for user and password. If i supply a domain-account i get
a failure, if i supply a local samba-server-account all works fine.

Where should i look to solve this problem?
C.Scheeder