Weird brightness changing during play

[MoonMoon]

Hey!
I have this frustrating problem with Amnesia,that brightness changes during the game.I have gamma on 0.85,but when I play and look at some place at a certain angle,the game gets really dark like on the lowest gamma setting.But when I look at the same place and I'm standing a few centimeters more to left or right,the lightning is normal.

Oh yeah,and everything seems normal when I'm on the highest gamma setting or I'm using a lantern.The game played normally before I changed my hard drive.

I also updated my drivers,reinstalled game,but it didn't help.

Here are my specs:

Geforce GTX280
Intel Core 2 Quad 2.5 GHz
4 GB RAM
Windows Vista 64bit

Also,I tried to take a screenshot of what Amnesia should look on my settings,and how it looks with the brightness bug,but on the screenshots it looks normal...(also tried to take a picture with my phone but the quality was very crappy so...yeah.)



(Sorry for all the grammar and logical errors)