Hey, I've posted here before and thought the problem was gone, but apparently I was wrong. The installing new graphic driver solution did not work as well as I hope, the problem is still here. Errors are becoming more frequent during my gameplay and once again I am here to seek help. I only play two games on this desktop, which are modern warfare 2 and left 4 dead 2. Let me once again describe my trouble playing these 2 games: During my gameplay, the frame would suddenly freeze up and the sound would loop repeatedly. I often wait during this sound looping/frame freezing occurrence to hope that the game would return to normal, but that is really rare. Since the game is unable to run properly, I am required to go to task manager and end the game's task. As mentioned in my previous post regarding this problem, I searched on Google a and tried numerous solutions but it was no help. As I read one of the post I got from Google, I'm beginning to wonder if this is really a graphic driver problem, or perhaps it is a hardware problem like fault memory? That is just a theory and I hope someone here can point me in the right direction to solve this annoying case. Assistance would be much appreciated! Please let me know if you need more information or files.