Penumbra Black Plague Crash

[BScott1122]

i just put the crystal into that wierd bottle with the claw and with the alien tryin to get in the door behind me. so i turn the valve and it sais 2 minutes till termintation. so i start running through the obstacle course of debris and when i get through it i get to a room where i hadda put the pipe in to stop the gas from flowing. going right does not get me anywhere so i go left. when i click on the door it loads for two seconds then i hear a giant rubble crash and then the game exits and sais it crashed and my drivers are updated and i have vista 64 bit and im using two way SLI with 9800gtx+ PLEASE help!