Keyboard (some) keys not working
Dear Community,
Some of my keyboard keys are not working - specifically j, k, l. On advice found here, I plugged in an external keyboard to test it, and they work fine on that keyboard! So.... does that mean a software update? If so - which one? or? Totally appreciate a 'next step', please? TIA!!
(I am on El Capitan on a MacBook Air 13" Early 2015, fwiw)
MacBook Air 13″, OS X 10.11