When I press the + key my mac is now taking a screenshot. Pressing the + key on the numeric keypad does not do this. This just started happening and I can't figure out how to debug this to understand what is going on.

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    If you open System Preferences/Keyboard and enable "Show keyboard and emoji viewers in menu bar", you get the on-screen keyboard viewer. This will at least check to see if your keyboard is really sending a "+". – Jamie Cox Mar 6 '19 at 18:01
  • Are you saying when you press the plus key (which is actually Shift =), you get a screen shot? Or is it when you press the = key alone? – Allan Mar 7 '19 at 15:03
  • It was when I pressed the = key alone. I fixed it today by simply unplugging the keyboard and plugging it back in :) . Not sure why I didn't think of that earlier. – Dave Mar 7 '19 at 18:54

Look in System Preferences/Keyboard/Shortcuts/Screenshots to see if that key is set as a shortcut to take a screenshot. Maybe it got set accidentally. Screenshots preference pane

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  • My shortcuts are setup correctly. Must be something with my keyboard .... – Dave Mar 6 '19 at 17:23
  • @Dave, maybe install Karabiner and use its event viewer to see what keys trigger when you press plus. – Joonas Mar 6 '19 at 17:57

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