GFX issues: Objects solid black

[Zordak]

Hi,

An increasing number of objects ingame is displayed solid black for me - specifically those that get update grafics/textures. Heres an example of me standing between some rocks:
<click>
Now this is not a missing textures issue as you can tell from the closeups:
<closeup armor> & <closeup rock>
This is highly annoying since i see every armor texture solid black as well as an increasing (with each update) number of objects. So far its many rocks and also all the trees around pn2 - but i dont claim that list to be complete.

I do not have those issues in safe mode - another hint that it is shader related.
Maybe someone remembers the line for game.cfg to disable the shaders? dbg_shader_disable=1 ?

Some specs:

Arch Linux 32bit 2.6.30
Nvidia driver Version 185.18
on a GT7900 card

Any ideas on how to get rid of this problem would be very much appreciated.

Z.

edit: game.cfg option is dbg_disable_shaders = 1 & the objects are displayed correctly then