Framerate issues with Amnesia: The Dark Descent

[AdamAK]

I'm using 301.24 as well. They released 301.42 a few days ago, but I haven't updated to those yet. The ones I'm using now should really be good enough, though.

Are there, perhaps, any version differences? As in, that the Steam version is different from the one sold through store.frictionalgames.com and that this is somehow at the root of the problems?

The game seems to be running quite okay on high settings now (with the exception of The Sewers, I get 50+ fps while recording with Fraps), but the error list is quite puzzling.

There's another issue I seem to have while playing in full-screen mode. Once every few minutes, my gamma settings automatically change to a really low, too dark value. This happens randomly while I'm simply playing the game. Never had such an issue in windowed mode, so I'm wondering what's causing it. The interesting part is that Fraps still captures the footage with the correct gamma settings, but I'm getting a very dark picture on my screen.