Penumbra: Overture graphical glitches and freezes

[Kedjane]

Strange! Do you use some download software/extension for your browser? What browser is it?

I'm using the standard Internet Explorer plus extra nothing as far as I know. I've probably got some bad-stuff blockers and that yellow bar always appears when I try to download stuff.
But when I hit that link it just goes to that old 403. :neutral:
Couldn't find the patch on any other site either, only for the demo.

The game works pretty fine, but all fences and lots of other things that are not a part of the environment (floor, walls, roof) flicker and disappear. Unless I hit escape it doesn't crash, so I've been trying to play as far as possible without pause. The savegames work fine and all.