[Samba] Samba as PDC

[Matthew D. Smith]

Trying to setup samba as a PDC, but i cannot get my windows XP Pro boxes 
to join the domain. When i go to join them, it tells me that the domain 
server cannot be found. Below is my smb.conf file. I have already 
applied the necessary XP pro registry patch. I have followed the 
directions as outlined @ 
http://www-106.ibm.com/developerworks/eserver/tutorials/samba.html and 
have also referenced the Samba-PDC how-to. Any suggestions?

BEGIN SMB.CONF
_________________________

# Global Parameters

workgroup = synner
netbios name =  samba
encrypt passwords = yes
security = user
domain logons = yes

os level = 65
preferred master = yes
domain master = yes
local master = yes

logon path = \\%n\profiles\%u

logon drive = s:
logon home = \\samba\%u

add user script = /usr/sbin/useradd -d /dev/null -g machines -s 
/bin/false -M %u

[netlogon]
; comment = Network Logon Service
path = /var/lib/samba/netlogon
guest ok = yes
writeable = no
share modes = no

[homes]
read only = no
browseable = no

[music]
path = /data/mp3
browseable = yes
public = yes

[apps]
path = /data/apps
browseable = yes
valid users = @admins, root
write list = @admins, root

Thanks for all your help.

-Matt