Hi,
I have a 1GB NVIDIA GT525M optimus card. I followed all the steps and would like to report that everything went smoothly.
My only concern is when I run “optirun glxspheres”, I get only about 16 frames/sec. This sounds a little low to me as you are saying you were getting 86fps. I don’t know exactly which monster card you are using 🙂 but 16 sounds a low number to me.

Can you comment on this please?