I notived that our SBS 2003 server was acting strangely. After further investigation I notived that the DNS settings on the local NIC were pointing to the external ISP DNS servers. I changed this to point to itself but after a few minutes it reverts back to the enternal IP address. I have run a search on the entire registry and find that it is only listed on this one interface. I have tried to change them in the registry but it reverts back to the external addresses after a few minutes. The single router is not running dhcp, the forwarders on DNS server settings is correct. Not sure where else to look.