Go back to 9631 is a bad idea, because the new nVidia cards (8000) only work with the new 9755 driver. So updating was the right decision.
The problem is, that now 3 trees of nvidia-drivers are available: 97xx - for newer cards (at the moment in nvidia-glx) 96xx - for cards in the "middleage" (no driver available in ubuntu) 71xx - for "historic" cards (at the moment in nvidia-legacy-glx). This driver provides 3d but no support for compiz/beryl. So the developers have to maintain 3 versions of nvidia-drivers. More work to do. Nevertheless I hope, that all 3 versions will be provided with Ubuntu. -- MASTER: Request for new-legacy nvidia drivers (9631) https://launchpad.net/bugs/96430 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs