Many including myself have commented that, using a 200 or better NVidea card, DirectX has higher frame rates than OpenGL, the reverse of our experience with earlier NVidea versions. Because of this, I have been using DirectX getting 35% better FPS but this means bad looking water and, since I can't take screen shots in DirectX, I must change to OpenGL for screen shots. Not any more.
I have upgraded the video driver to 257.21 WHQL and now on my system (see below) OpenGL has better FPS than DirectX.

I have upgraded the video driver to 257.21 WHQL and now on my system (see below) OpenGL has better FPS than DirectX.

