Comment 3 for bug 626320

Happens for me too, I can not enable the NVidia proprietary driver. Shouldn't this have a higher priority? Users want to use their proprietary drivers, as long as wireless does not work without them, and effects can not be enabled, and unity can not be used. The priority should be raised, although it's a bit too late for the fix to be completed and included in the final release. Sad.