Re: Problem even after reformat
before jumping into a bios flash on an unstable pc you should check some other components, because, if it takes a dump during the flash you'll be screwed royally.
Which video card do you have? I would suggest your video card has gone tits up from the symptoms you describe, can you try another card in your pc?
Run Memtest86+ to see if the memory is the problem as well.
Can you be more sprcific as to the missing drivers messages please.
E8600@ 4.25GHz, 1.325V | Thermalright Ultra 120 eXtreme + Scythe Slipstream 120 | Asus Rampage Extreme| 4GB Corsair 2000MHz 8-8-8-24 @ 1600 6-7-6-24| ASUS 9800GTX| Pioneer 18X SATA DVD-RW | 320GB + 500GB WD SATAII | Antec True Power Trio 650W | Thermaltake Sonata | Vista Ultimate x64 SP2/Win7 Ultimate