Penumbra: Black Plague | Game Crashes!

[Threnody]

I've been playing Black Plage for a while. I have reached the corridor where you must turn the power off by breaking the box located at the end of the hallway and after it you will face the very first enemy in the game. When I get the synirge and take a blood sample from dead man behind the laser beams, and use it to electric lock, door opens. Game starts to load normally, but after five seconds whole game crashes down! Has something like this happened to anyone else? Can someone help me with this one?