unable to join to the domain with netbios name

Hi

I am unable to join my Vista business machine to a windows 2003 domain
using netbios name, FQDN is fine. Netbios resolution is working as I can
browse the domain and use net use to map network drive on all DCs within
the domain. Also, all Windows XP machines can join to the domain with
netbios name.

Netbios over tcpip is enabled and IPV6/local firewall is disabled. All
client machines are on the same subnet. No WINS is used on the network.

The error message is:
An attempt to resolve the DNS name of a DC in the domain being joined
has failed. Please verify this client is configured to reach a DNS
server that can resolve DNS names in the target domain.

Any idea?

Thanks