Just re-installed it , Im going to play for about 30 mins see if anything goes wrong.
thanks

UPDATE** haha that went well, crashed on the "connecting to account server" screen.

Have you installed the latest patch?

No , dont believe i have , I take it you mean patch for the game?
Got a Link for it please?
thanks

im having the same problem, ive heard that it could be our power supply units, check all ur voltages to make sure there within 5% of there thresh holds, my voltages are all fine but ive heard that they can fluctuate wildly from time to time but still return back to normal. Also My USB devices just randomly disconnect, does urs do the same?

No they dont disconnect , How do you check your Psu?
AND.... what advantages are there of upgrading your Psu?