Thanks for your report. The freeze you reported originally was probably cause d by the ABI change to X 1.10. There has been a short period of time during which the driver and X were out of sync, that's why the update fixed it.
About the Unity unstability, do you have accessibility enabled on your system ? To check this open the accessibility preferences dialog: * With Unity click on the top-right 'Power' icon, select 'System settings' then 'Assistive technologies' * With classic desktop: Click on the top left icon, select 'System/Preferences/Assistive technologies' And check that none of the checkbox is checked. If assistive technologies is not enabled and you are experiencing the Unity freeze with Alt+tab or other action could you please file a new report against Unity with the command: ubuntu-bug unity About the performance issue, is it just that the rendering of glxgears being stall or the performance being bad ? If so, what performances do you usually get with this system and what is the degradation compared to a previous version of the driver ? ** Changed in: nvidia-graphics-drivers (Ubuntu) Importance: Undecided => Medium ** Changed in: nvidia-graphics-drivers (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/737755 Title: Natty: Cannot boot with proprietary NVIDIA driver for GeForce 8800 GT. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs