Hello friends.. this is my 2nd post. I have not found any solution for my earlier problem that is in the head of this thread. But i found something which i had not noticed before. My system is crashing after i install the nvidia graphic driver for my gtx650 with amd 6300 and gigabyte 78 lmt-s2 mobo. is there any incompatibility in my hardware or is it any software or driver fault. Pls also tell me whether i can install windows 7 32 bit on this machine.. thanks in advance..