[8FS_Bulau]

Finally I found the guilty line

Code:

HardwareShaders=1

That sould leave with "0" value!

Code:

HardwareShaders=0

That's all!

What that does is turn off Perfect Landscape mode.

I notice you also have these lines:

TexFlags.TexEnvCombine4NV=1
TexFlags.TexEnvCombineDot3=1
TexFlags.DepthClampNV=1
TexFlags.TextureShaderNV=1

It used to be the case that those were specific to nVidia cards (NV), and I don't know if the more recent ATI cards can handle it. You could try setting those items to =0, then turn HarwareShaders back on and see if you still get Perfect Landscape, but no crashes.