Well, I did clear cmos then I formated my hdd, and installed a fresh copy of windows 7. Installed the last drivers for chipeste, gpu, etc but still ocasionally, on desktop/light 2d I will get a black screen for 2-5 secs and receive "Display driver atikmdag stopped responding and has successfully recovered." It happens on time a day or one time per 2 days, the pc didn't freezed. Again I was listening to music and the music didn't stopped, just the screen went black and recovered. Any other suggestions? I am completly out of ideas. I am expecting some stability. I still hope this is a driver/software problem and not a hardware one. I'm currently thinking of creating a support ticket at Gigabyte.