Hi. I am running Sins in Vista x64 (Business Edition), using dual nVidia Series 8's in SLI (GTXes). My CPU is a Core 2 Extreme QX6700, and I've got 4 gigs of 1066 Corsair RAM back-clocked to 800 MHz. I am having a horrible time with the game crashing like crazy. It usually doesn't happen until things get rolling really well, when I've got battles going on in 2 or more systems. Then, the sound stutters and the game refuses to respond to commands. I am almost always forced to eventually do a hard reset to force the game and the OS to shut down, then restart the system. This, of course, always results in losing a lot of game play and it is quite annoying. Also, although I have some of the best, latest hardware available, the cinematics are choppy and sluggish. Other than these issues, Sins is an awesome game, it might be the best one I have right now, except maybe for Crysis, which isn't without its share of problems, too, but it doesn't crash like this- I can't think of anything that's more of a buzzkill than a game that crashes just when it's going good. HELP !! Courtney