Windows 2003 Slow Logon

Hi I have a network with 6 clients we have just configured the network with a new Windows 2003 Domain Controller.

The problem we are having is that the logon to the domain seems to take ages to process. Typical logon time is 5mins. There are no scripts running and we are not using roaming profiles.

I have the clients DNS address pointing to the Domain Controller, DNS service was setup during the Active Directory process.

Can anyone suggest what might be going wrong with the service to have such long login times.

Any help or suggestions would be appreciated

Regards
Daeko