Black Plague | Weird Vision?

[dlder]

Hi, I've got the Penumbra games on steam and just finished Ep1. Now, when I try to play this Ep2, I get these weird graphical glitches. Or is this by design? 'Cause, when I startet the game, I thought maybe this was an enhanced blurry vision to be even more 'unreal' and frightful.

Well, if this is indeed an error: what should I do? (I currently run the game on 1920x1200 & max details)

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Thanks for any pointers,
dlder