Anyone with problems with ATI drivers read this.

[WhiteSnake]

Best Quality Settings for ATI Radeon HD3000 series and later:

[Render_OpenGL]
TexQual=3
TexMipFilter=3
TexCompress=0
TexFlags.UseDither=1
TexFlags.UseAlpha=0
TexFlags.UseIndex=0
TexFlags.PolygonStipple=0
TexFlags.UseClampedSprites=0
TexFlags.DrawLandByTriangles=0
TexFlags.UseVertexArrays=0
TexFlags.DisableAPIExtensions=0
TexFlags.ARBMultitextureExt=1
TexFlags.TexEnvCombineExt=1
TexFlags.SecondaryColorExt=1
TexFlags.VertexArrayExt=0
TexFlags.ClipHintExt=0
TexFlags.UsePaletteExt=0
TexFlags.TexAnisotropicExt=1
TexFlags.TexCompressARBExt=1

TexFlags.TexEnvCombine4NV=0
TexFlags.TexEnvCombineDot3=1
TexFlags.DepthClampNV=0
TexFlags.SeparateSpecular=1
TexFlags.TextureShaderNV=0

HardwareShaders=1

Shadows=2
Specular=2
SpecularLight=2
DiffuseLight=2
DynamicalLights=1
MeshDetail=2
VisibilityDistance=3

Sky=2
Forest=3
LandShading=3
LandDetails=2
LandGeom=3
TexLarge=1
TexLandQual=3
TexLandLarge=1

VideoSetupId=17
Water=2
Effects=2
ForceShaders1x=0

PolygonOffsetFactor=-0.0625
PolygonOffsetUnits=-1.0


Recomended CCC Settings:

Anti Aliasing on Highest settings (edge detect 12x).
Anisotropic Filtering at Aplication Controled.
Catalist A.I. Disabled
Detaillevel Mipmap at Max Quality
Vertical Refreshing (Vsync) at Off/Aplication Controled.
Adaptive Anti-Aliasing Enabled (has a big impact on FPS so i usualy recomend to Disable it).
OpenGL Triple Buffering Enabled.

Note:
TexFlags.UseVertexArrays=0 and TexFlags.VertexArrayExt=0 are 2 Settings that have to be Disabled ("0") for ATI Radeon HD cards!
Just like TexFlags.TexEnvCombine4NV=0, TexFlags.DepthClampNV=0, and TexFlags.TextureShaderNV=0 wich are nVidia only settings.
Water=2 is the Highest setting for ATI, but that looks atleast as good as Water=3 for nVidia cards if not better.