Samba as pdc

Hello list.

I'm playing a little witg samba 2.2.8a on Suse-Linux machine.
In network-neighbourhood I can see the Server and the open directories too.
Also the printer is available.
I try to add a workstation to the domain, but the ws told me that there
is no domaincontroller.

Here is a part of smb.conf file:
[global]
# Identifikation des Servers
interfaces = eth0
workgroup = GYMCARD
netbios name = www

# Die Definition des PDC
os level = 65
domain master = yes
domain logons = yes
local master = yes
wins support = No
time server = No
security = user
domain admin group = @ntadmin root
printer admin = @ntbadmin
unix extensions = Yes

# Passwort Einstellungen
encrypt passwords = Yes
update encrypted = Yes

log level = 1
syslog = 0
printing = CUPS
printcap name = CUPS
socket options = SO_KEEPALIVE IPTOS_LOWDELAY TCP_NODELAY
veto files = /*.eml/*.nws/riched20.dll/*.{*}/

# Logon Einstellungen fuer Windows
logon drive = R:
logon path = \\www\home\netlogon
logon home = \\www\home\netlogon\%U
logon script = netlogon.bat

[homes]
comment = Eigenes Verzeichnis
valid users = %S
browseable = No
read only = No
create mask = 0640
directory mask = 0750
[netlogon]
path= /home/netlogon
browseable = No
writable = No
comment = Anmelde Verzeichnis
[printers]
comment = All Printers
path = /var/tmp
printable = Yes
create mask = 0600
browseable = No
[print$]
comment = Printer Drivers
path = /var/lib/samba/drivers
write list = @ntadmin root
force group = ntadmin
create mask = 0664
directory mask = 0775

nbtstat give
C:\>nbtstat -a www

LAN-Verbindung 3:
Knoten-IP-Adresse: [192.168.1.11] Bereichskennung: []

NetBIOS-Namentabelle des Remotecomputers

Name Typ Status
---------------------------------------------
WWW <00> UNIQUE Registriert
WWW <03> UNIQUE Registriert
WWW <20> UNIQUE Registriert
..__MSBROWSE__.<01> GROUP Registriert
GYMCARD <00> GROUP Registriert
GYMCARD <1D> UNIQUE Registriert
GYMCARD <1E> GROUP Registriert

MAC Adresse = 00-00-00-00-00-00

What's wrong here?

Thx in advance for your advices.

Best regards.

Dirk Emmermacher