Ive been having this issue for about a month now. It happens randomly, my computer will work fine for a week and then it wont work for a day work well for a couple of days then wont work for a couple of hours. It will boot and say For Realtek RTL8139(x)/8130/810X PCI Fast Ethernet Controller V2.13(020326) PXE-e61 media test failure, check cable like I said it happens randomly and so far this is what I have done to attempt to resolve the issue. disconected and reatached hd have tried to put C: before network in the boot order and that didnt work ran hard drive software and it was telling me there was an error in the hard disc so I did a low level format. like I said its an intermittent issue and some times when I set up the defaults in bios it will immediately load. Have asked a crap load of people and they all just recommended trying all of the stuff I did before. I even reinstalled xp and reinstalled drivers.