graphic problems - fog and light on textures

[stpohle]

It looks exactly like the bug some other people have had and that had to do with refractions.

Did you uninstall the drivers and and rebooted before installing the new ones? This has helped in a lot of cases.

Yes i did but hasn't changed a bit. I was looking also on my laptop to see if i have there the same problem and i had. After i looked into the hpl.log file and i found this:
....
WARNING: Serialize class '' not found!
WARNING: Serialize class '' not found!
WARNING: Serialize class '' not found!
WARNING: Serialize class '' not found!
WARNING: Serialize class '' not found!
Loading collada for 'maps/level04_messhall.dae' took: 1677 ms
ERROR: Couldn't create material 'particle_rockpiece.mat'
ERROR: Couldn't create material 'particle_rockpiece.mat'
ERROR: Couldn't create material 'particle_metalpiece.mat'
ERROR: Couldn't create material 'particle_metalpiece.mat'
ERROR: Couldn't find particle system file 'particle_imp_generic_hard.ps'
WARNING: Parent 'group3' couldn't be found! Failed to attach 'artefact01_pointLight1' to 'artefact01'.Attaching directly to mesh.
ERROR: Couldn't find particle system file 'particle_imp_generic_hard.ps'
ERROR: Couldn't create SoundEntity 'unbreak_impact_metal_soft_furniture_med.snt'
WARNING: Couldn't preload sound 'unbreak_impact_metal_soft_furniture_med'
ERROR: Couldn't find particle system file 'particle_imp_generic_hard.ps'
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
WARNING: Geometry joint parten '' is missing! Might be connected to bone.
WARNING: Geometry for joint child '' is missing! Might be connected to bone.
......

Config of the laptop:
Also Debian / Lenny (testing)
OpenGL renderer string: GeForce Go 6600/PCI/SSE2
OpenGL version string: 2.1.2 NVIDIA 169.12

Maybe this helps now to find the problem..
bye bye,
Steffen