Hello,
It's a good new for me today. I can now use the NVidia graphic card on my Optimus laptop with Gem and Bumblebee. Before when i launched pd and gem with : $ optirun pd-gem Pd crashed very often. Until this morning (with an upgrade of different openGL library on my Ubuntu 11.04) i can launch pd and Gem without problem. This is nice ! :) So people who have laptop with Optimus should upgrade their openGL library today and install the last Bumblebee. ++
Jack