Quote Originally Posted by jdellasala
You can switch out of any app including Opera. Hold down [Alt] and hit [Esc] to bring up the task ribbon, scroll to the item you want and let go of [Esc] when the one you want is selected.
or just press 'end' key and it takes you to main screen and when you go back to the icon and click it, it resumes where you left off since 'end' key isn't really exiting program.