is anybody playing this free game over Steam ? I have awful frame rate stops of about 1 sec or so, and it happens quite often. It seems not to be affected by the video quality option in the game. What would cause that ? - do you think that it may be the small video memory of my card ? .. I got only 128MB dedicated, and the card itself reports 512MB so I'm guessing the rest is taken from the RAM. point is I can play fluently with high FPS and then boom, stop for a sec or so, then keep smoothly, then stop again ... etc, maybe every 10 to 20 sec I get at least one stop. Happens only in this game... ideas ? P.S. My overclock is dead stable, as I can go up to 650 core / 975 memory.