I am not using the nvidia integrated NIC's, they simply do not work with the forcedeth module. I installed a Sun NIC (sunhme driver) into the box and was working great on F6. I reinstalled today with F8 and the sunhme nic seemed to be working. I was able to connect to network services during install time. However when rebooting, the OS reported that eth0 (sunhme) did not seem to be present ("sunhme device eth0 does not seem to be present, delaying initialization.") At this point kudzu brings up the sunhme card up as eth1 and obtains a DHCP address, network is working. Subsequent reboots the problem starts over ("sunhme device eth1 does not seem to be present, delaying initialization.") and eth2 is brought up, rebooting eth3 comes up and so on. If I disable kudzu, sunhme fails alltogether. I am using the latest distro from fedora, no xen. Any ideas would be appreciated.