Hi. I have an AsRock 775 Dual-VSTa board with an intel e6300, 2x 1 gb corsari value select ddrII 667 memory and an Nvidia 6800 LE. Up untill a few months ago I could play games on my computer (Halo 1, Need for Speed, and a couple of others. I´m not much of a gamer). The problem is now every time...