Penumbra: Overture not running.

[Urkle]

Patch!.. the steam version includes all current patches, you should not be manually patching a steam version of any game. And it's quite odd that nautilus found it in /proc/ (or even SEARCHEd in /proc).. the game should be installed in ~/Steam/SteamApps/common/ (all games on steam go in that folder by default)

I would also suggest running the verify cache procedure in steam by right clicking on the game and choosing properties.

So, the crash you are experiencing is WHEN the game tries to render 3d graphics..

Can you provide some details about your graphics hardware and drivers? This can be done by running glxinfo and pasting the output of that here.