Question: One Key Pressed; Two Letters Typed
I bought a new MacBook Air less than four monthds bacxk.
Ugly problewm todsay: when I predsds a kewy on the lewft dsidsew , two letters are typed. Left some here; fixed others using mouse-click or left-arrow and delete.
Haven't spilt anything; fingers always been clean.
Grateful for any help.
MacBook Air, macOS Sierra (10.12.3)