[VF101hawk]

Try the nvidia driver version 258.56 as theese on at least my system works better then the 260 version.
Im running wim7 64 bit ultimate with a msi 460 1 gb oc cyclone.

Then also try this in your config ini.

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

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

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=4
Effects=1
ForceShaders1x=0

PolygonOffsetFactor=-0.15
PolygonOffsetUnits=-3.0

use nvidia control panel and adjust the settings there.
mine are and also worked great when running xp.

optimized for one screen.
af 4x
aa 8x
multisampling
aa modus =override
cuda gpu= all
max prerendered images=3
powermodus=max performance
teksturefiltering anisotropic optimatation=on
teksture filtering = qualety or high oerformance
LOD=clamp
teksture filtering treline= on
trippel buffer= on if lcd screen and vsync is enabled. else off.
Or why not try both!

Wish you good luck!