Well, do you have Matlab installed ? Heard that it can disable OpenGL hardware acceleration.
Else you can run Glinfo
and post what it reports as GL vendor and renderer. It it is Microsoft / gdi generic (software emulation), the graphic drivers were not installed properly or another process steal hardware acceleration, if it is Nvidia, OpenGL should work.
I am running out of ideas.
EDIT: spelling and added renderer.
can you tell me what kind of programs, can steal gl’s acceleration?
I know some DirectX progs can do that. Normally multiple OpenGL programs can run at the same time though.
Are you really positive you installed properly the nvidia driver ? In display control panel, can go to advanced, clisk on the nvidia tabs, and post the driver version it says ?