Out of the blue (not screen of death) my network on my gigabyte GN7400L motherboard croaked. The computer, on rebooting keeps trying to find drivers for a video card (although that ..a Geoforce 4 AGP is working perfectly OK)and the device manager identifies a problem with a PCI device under the PCi-PCI bridge. The motherboard also won't reload the PCI modem I have tried reinstalling the device driver from the gigabyte CDROM and the latest drivers from the gigabyte site but nothing would be recognised. I flashed the bios to the latest without any change. Other than for the network and the modem everything else works OK. No viruses or malware.