Just till 3 days ago all my games were running fine with very stable frame rates then suddenly games started of fine but then starting lagging so much that it was barely playable my specs are:-
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2399 MHz
NVIDIA GeForce 8600 GT
Windows 7 32bit
I dunno what to do please help!!