I experienced almost the same error, reported it in 1009858.
Steps to reproduce:
1. Go to gnome-control-center
2. In Keyboard set some keyboard shortcuts in Navigation and Windows sections.
3. Enjoy!
4. After some time all shortcuts will reset to 'Disabled' state. For example, Alt+Tab shortcut does nothing.
I use Gnome Classic (without effects), so Compiz is not running.
I experienced almost the same error, reported it in 1009858.
Steps to reproduce: center
1. Go to gnome-control-
2. In Keyboard set some keyboard shortcuts in Navigation and Windows sections.
3. Enjoy!
4. After some time all shortcuts will reset to 'Disabled' state. For example, Alt+Tab shortcut does nothing.
I use Gnome Classic (without effects), so Compiz is not running.