Multi textures on one object and other

[Ezaiany]

I have exactly the same problem. Running on Sapphire ATI Radeon HD 3850 512MB. I've tried everything I could think of including updating Catalyst and drivers to the latest, turning various setting on and off both in the game menu and in Catalyst Control Center. Nothing ever worked.

Strange thing is, I remember that these graphical problems didn't occur in the first Penumbra and neither did they happen in the unpatched version of Penumbra Tech Demo. Maybe the patch is to be blamed here? I'm running out of ideas.