Well i just tryed your advice Bro,
this is with 257.15
I went into Arma 2 and it was smooth for about a minute where it had been 2FPS,but then it started doing graphics glitches like the one in this pic:
after i tryed upping the fan speed to 70% incase it was not cooling the card.
But i just did the benchmark and Got average FPS=15 with my 285 i got 38FPS
I'm stumped because in Alien vs predator&Batman it's flawless performance
i'll test some other games like Dirt 2 and Metro
Cause it could just be Arma 2 not liking my card.
Also Antivirus was off during the test
This may be the "Nail in the XP coffin for me" now i need to get Windows 7[not that i'm complaining about upgrading