OK.
I upgraded the driver and now it says "7.15.11.7516" so I guess the driver has been updated as it should.
With DirextX I got an average of 90, the same as before I upgraded the driver.
With OpenGL I got an average of 51, a ca. 50% increase in framerate..
but the graphics went very bad!!
Look:
I'll check on this tomorrow.
Skarphol