set PhysX configuration i disabled
under manage 3D settings here is how i have it set from top to bottom
Ambient Occlusion on
Anisotropic Filtering Application-controlled
antialiasing – gamma correction off
antialiasing – mode application-controlled
Antialiasing – setting application-controlled (grayed out for me)
antialiasing – transparency off
conformant texture clamp use openGL specification
Error reporting Off
Extension limit off
Force mipmaps none
maximum prerendered frames 8
multi-display/mixed-GPU acceleration single display performance mode
texture filtering- anisotropic sample optimization on
texture filtering – negative lod bias allow
texture filtering – quality Performance
texture filtering – trilinear optimization on
threded optimization Auto
Triple buffering Off
Vertical sync Use the 3d application setting