can anyone please help or advise, my pc kept crashing mostly when i was on the net, BIOS error was the most common message. so went to mercury website (motherboard manufacturer) printed out details to reset & update bios. basically it said use flash file on CD, save BIOS which i did on floppy, then using download update BIOS and flash file from CD i was installig new BIOS, the screen showing progress, so i thought all was ok, then screen went black no warnings nothing!.i left it on for about an hour but still just blank screen. now it wont boot at all not off floppy,CD or hard drive, it used to show MERCURY logo before booting to windows,CMOS or floppy, now it doesnt even do that. the BIOS is AMI and the CPU AMD Duron 2.1GHz, o/s Windows XP Pro. Can anyone please advise or help ?