Will Rock: odd graphical bugs

[MrFlibble]

I've encountered an odd bug in my Will Rock v1.2. In some of the game sublevels, the environments seem to have incorrect shadowing with odd black patterns all over the surfaces, and ugly, unnatural changes of surface lighting.

Before you say, "You graphics card is incompatible with the game", please take into account the following facts:

1. This bug appears on only about 1/3 of all the game (sub)levels, always the same ones.

2. Before buying the game, I played a demo that featured one level (consisting of 3 sublevels) of the final release. And in the demo, one of the sublevels was ok, and the very same sublevel in the full game is corrupt (see screenshots).

Any ideas why? Or maybe you encountered a similiar problem? I've tried contacting tech support, but with no results as yet :(

[attachment deleted by Gobalopper]

[Barbarossa]

Most times, there are Variations between Demos and the Final Release. It's very possible that this is just a Glitch that only appears in the final version of the game.