Hey I'm in desperate need of anyone's help !!! I've just installed Vista as I plan to use the 360 Games Everywhere or whatever interface. So anyone the Bioshock demo work's fine on XP but the screen goes black and then it just goes back to the desktop on Vista. I'm running a Macbook Pro and yes it can run it, on Xp it ran at Max settings fine. The drivers on NVidia's website don't work and I've also tried downloading the demo again from Steam. The GFX card is 8600m GT aswell. Any help?