[kjk]

Yes thanks Fireskull. As for the settings (still) using Directx the MeshDetail is set to 2 all right, all graphics settings are set to maximum and having smooth frame rates, however in the Video tab of the setup utility the Texture mipmap filter was set to bilinear while I had set it to anisotropic. Don't know what made it reset.
Haven't read your optimisation guide in detail, plan to do so. Thanks.