Only Get A Black Screen, Only When I Go On The Level Of Tower Deference Or In Sector Of Orokin.

[skinny9892]

I can be playing the level then all a sudden, the computer screen changes to black and then my computer screen goes back normal. After that I see the games screen all in black and with 2 or 1 white square on top or next to each other and ect.. I can hit Esc and everything works, I can here myself moving, attacking, getting attack, buttons on keyboards working and ect. I can restarts the game and it the game works as normal. It's just with that map only. I am using the steam version. and yes laptop can run the game. Any help