Some people with NVIDIA video cards have the following bug:
![Image](http://www.dd-diary.de/ingame.jpg)
There should be textured 3d objects, but they are rendered in a single color (not always blue, but in a single random color). Some small objects are rendered correctly (like the circle in the middle of the screen), also all 2d graphics (even with 512x512) work correctly.
We found out, that this helps in most cases: Change the NVIDIA quality setting from "High quality" to "high performance" and it works - in Windows. In Linux it doesn't help anything.
Is this problem already known? Is there any solution? Please help!