It's unity-control-center that crashes, so I would keep that bug task open for now.
However, you mentioned Nvidia... I recall from last year that a user reported that they downloaded Nvidia from some web site and installed from command line, resulting in a library file belonging to an Ubuntu package being removed. See bug #1002187 starting from comment #49.
Have you checked that libwayland-egl.so.1 (which should be a symlink) exists and links to the actual library file? What if you do
It's unity-control- center that crashes, so I would keep that bug task open for now.
However, you mentioned Nvidia... I recall from last year that a user reported that they downloaded Nvidia from some web site and installed from command line, resulting in a library file belonging to an Ubuntu package being removed. See bug #1002187 starting from comment #49.
Have you checked that libwayland-egl.so.1 (which should be a symlink) exists and links to the actual library file? What if you do
sudo updatedb
locate libwayland-egl.so.1