problem with windows when join domain

[Adel ESSAFI]

Dear all
I have succeded to configure my SAMBA server as a PDC as tou see here
Domain=[INFO6] OS=[Unix] Server=[Samba 3.0.24-7.fc6]

       Server               Comment
       ---------            -------
       SER6                 serveur samba 3.0.24-7.fc6

       Workgroup            Master
       ---------            -------
       INFO6                SER6

But, when I try to connect my XP client to the domain, an error message 
tells me that windows cannot fiond the master of the domain INFO6. I 
have although, configured samba to support wind resolution. Can you help 
me to check out this problem. Regards
Adel
ps: here are the smb.conf and the pic of the error (sorry, it is in french)

[root at esstt ~]# cat /etc/samba/smb.conf
# Samba config file created using SWAT
# from 127.0.0.1 (127.0.0.1)
# Date: 2007/11/05 17:12:58

[global]
       workgroup = info6
       netbios name = ser6
       server string = serveur samba %v
       log level = 2
       log file = /var/log/samba/log.%m
       max log size = 50
       logon script = netlogon.bat
       logon path = \\%L\profiles\%U
       logon drive = H:
       os level = 65
       preferred master = Yes
       domain master = Yes
       name resolve order = wins bcast hosts
       wins support = Yes

[homes]
       comment = Repertoire personnel
       read only = No
       browseable = No

[profiles]
       path = /home/samba/profiles
       read only = No
       create mask = 0600
       directory mask = 0700
       browseable = No

[netlogon]
       path = /home/netlogon
       browseable = No

[printers]
       comment = All Printers
       path = /var/spool/samba
       printable = Yes
       browseable = No



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