Solution for me, temporary since it sometimes disapears again.
Go to: CompizConfig -> Switcher -> Key to start the switcher
Change from Alt+Tab to something else, close, then add Alt+Tab again.
Solution for me, temporary since it sometimes disapears again.
Go to:
CompizConfig -> Switcher -> Key to start the switcher
Change from Alt+Tab to something else, close, then add Alt+Tab again.