dunno about "fix", but try this:
Originally Posted by Roflcopterofl
Create a new user on the system, logout, and login as the new user and see if the problem persists. If it does not, then it's an issue with your ~/.config and/or ~/.gconf.
to start fresh with ~/.config and ~/.gconf do this:
Logoff and press Ctrl+Alt+F1 and login to the console as yourself
then Ctrl+Alt+F7 and login as yourself.
mv .config .config.org
mv .gconf .gconf.org
NOTE: This will reset all your Desktop "Experience" (aka panels, etc) to defaults.
Please let us know.