I've had this problem for a couple of months, but now it became just unbearable. After using my computer for a couple of minutes, first my screen starts blinking (turns black and then shows up again). Then, it just completely freezes and I cannot do anything after that but to restart the machine. I need to leave it for a couple of minutes to cool down to be able to turn it back on again. So, I was thinking it is my video card that is causing this problem. My card is GF4 Ti4200-8x OTES from Abit. First I noticed problems with the card when I was playing games, the graphics would just go crazy and I would see black lines across the screen while playing after some time. When I bought the card, there was no such problem, but after a year, it started happening. Now, I am thinking of getting a new video card, but I am not sure if maybe something else may be causing this, not the card?
Help is appreciated.