[font=Times][size=7] i have had problems with doom 3 just shuting down during random times. but i think i got a pattern to it, it cuts off when a major event happens 4 me. like in the beginning when u have the boxes fall near u getting up 2 mars city. i have delt with this problem by simply saving after every corner i take pretty much. its annoying, but the game seems to run longer and not crash as much. i have made my way to Alpha Labs 4 with this proplem. 8)