And it’s driving me nuts. I must have used some weird shortcut inadvertently, and I don’t know how to reverse. Any suggestions would be very much appreciated
If you’re on 10.9+, slide your cursor to the top of the screen and click the blue arrow-thing on the right end of the menu-bar that appears; if you’re on 10.10+, slide your cursor to the top of the screen and clicl the green “traffic light”. Full screen in Mavericks and Yosemite creates another space and opens in that …
EDIT: If you want to go to the old-style full-screen with the menu-bar visible, Opt-click the green traffic-light.
You’ve saved my day