John from Glendale
on Thu Jun 21 12:25:53 2018, in response to Re: PHOTOS: BALTIMORE METRO SUBWAY SHOPPE TOUR, posted by TransitChuckG on Thu Jun 21 12:04:19 2018.
I also have a 21.25 iMac. Go to System Preferences-Displays. Choose another setting besides 1280x720, or choose default for display.