Well the problem is this:
I just play Conquer2.0 (a online game) and all its good, no lag, all seems good. But then my computer restart or turn off. I think its the videocard i got, or i need update the driver or stuff.
Before in my old computer Pentium 3 i never had this problem playing this game. Tell me what can i do, or how to upgrade the videocard, it sucks, im a noob about computer so i need help.