Windows 2003 Server y Servidor Samba Unix

Hola , ¿alguno ha autentificado un windows 2003 R2 en un servidor de dominio
samba? a mi no me autentifica, mientras que en los windows XP no he tenido
ningun problema.

Me da un error de nombre de host que con los XP no ocurre.
¿Alguna idea? ¿Algo especial a tener en cuenta en la configuracion del BIND?
¿Algo a tener en cuenta en la configuracion de SAMBA?

El error en concreto es este:

The domain name anurix might be a NetBIOS domain name. If this is the case,
verify that the domain name is properly registered with WINS.

If you are certain that the name is not a NetBIOS domain name, then the
following information can help you troubleshoot your DNS configuration.

The following error occurred when DNS was queried for the service location
(SRV) resource record used to locate a domain controller for domain anurix:

The error was: "DNS name does not exist."
(error code 0x0000232B RCODE_NAME_ERROR)

The query was for the SRV record for _ldap._tcp.dc._msdcs.anurix

Common causes of this error include the following:

- The DNS SRV records required to locate a domain controller for the domain
are not registered in DNS. These records are registered with a DNS server
automatically when a domain controller is added to a domain. They are updated
by the domain controller at set intervals. This computer is configured to use
DNS servers with following IP addresses:

192.168.250.253

- One or more of the following zones do not include delegation to its child
zone:

anurix
. (the root zone)

For information about correcting this problem, click Help.

Gracias