nvlddmkm display driver, error

[t4trouble]

[BOB]
EpilepsyFilter=0

[window]
DepthBits =24
StencilBits=8
DrawIfNotFocused=0
SaveAspect=0
Render=D3D9_0
width=1280
height=800
ColourBits=32
FullScreen=1
ChangeScreenRes=1

If its not there try adding it yourself, Note you'l loose AA in video options in game settings with the line Render=D3D9_0 in conf