I have a machine with a K8N NeoF-4 motherboard from AMD. It has an onboard nVidia nForce4 ethernet adapter. I have Windows XP Pro X64 installed. When I go in to manually set the TCP/IP settings everything looks good. However, once I close the Properties for the ethernet adapter, the settings revert back to DHCP. The problem is that DHCP info is not being pulled either.