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EssentialParado

macrumors 65816
Original poster
I was away from work for a while and when I returned I found one of the Macs has been played with by a Student and now it has two lots of Shut Down, Log Out, and Force Quit in the Apple menu, and whatever you have in focus (if you've got a file selected, or window selected, or a menu item) it's got a big black square outline around it. I haven't a clue of what's happened!
 
I had the double menu items from time to time and was resolved by a log out and log back in again.

The black box sounds a bit like universal access (system preferences). Does your computer speak to you? If so press cmd+F5 if not look through Universal access.
 
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