[Wine] oblivion gfx problems

[keisangi]

hi there,
i'm trying to play oblivion, the game installs and run fine but there's still some minor problems.

in nature (woods, mountains..), here and there, objects and texture seem to be missing.. kind of like if i used "noclip" and walking though objects.. so at time i can see though parts of a mountains, or run into a big rock , i cannot move forward any further but i cannot see that rock..
..things like that.
most of the time it's fine though.. and indoor (shops, houses) seem fine so far.

so any idea if this could be helped?
hum also, performance doesn't seems good either. it's playable but it should be faster..


here's my system info
ubuntu (jaunty beta)
wine version: 1.1.18
nvidia driver: 180.44
gfx card: nvidia 9600gt 
cpu : quad core extreme
ram: 2gb

and i've setup these in the registry:
 (HKEY_CURRENT_USER\Software\Wine\Direct3D):
OffscreenRenderingMode=fbo
VideoMemorySize=512
DirectDrawRenderer=fbo
UseGLSL=enable
RenderTargetLockMode=auto
Multisampling=enabled
PixelShaderMode=enabled

i don't know if all theses setting are necessary, i just tryed to follow advices i saw on appdb 

tnx