Numeric keypad doesn't work in Excel after El Capitan install
I just installed El Capitan on my MacBook Air and now find that my usb-connected numeric keypads do not work in Excel ( I have two and neither works properly ). The do work in Notes and in Word, just not in Excel for Mac 2011. When I enter a number it appears briefly and automatically backspaces. If I hold down a number key a series of numbers will appear in the cell and when I stop the last entered number is backspaced out. Microsoft support was no help.
MacBook Air (13-inch Late 2010), OS X El Capitan (10.11), Excel for Mac 2011