After my first run through Bioshock, my game started having severe sound problems. I tryed every fix I could find on the Bioshock forums, with no luck. I then remembered that game jackal limited itself and games to just one cpu at a time, Bioshock can and will use more. If you're having stuttering or sound loss, try setting the game (in your game jackal profile) to use more. this solved all of my problems, and I hope that it might help others. Edit: here are my system specks Intel Q6600 evga 680i sli main board nvidia 8800 gtx 2gb ddr2 pc6400 win. XP pro sp2 Audigy2 zs plat.