In the middle of migrating my work stuff from my old Dell laptop, my RMBP suddenly glitched on me. None of the alpha/numeric keys are functional. However, function keys, arrow keys, trackpad are all functional. Further, hitting an alpha key will WAKE the sleeping RMBP. Same effect on the external keyboard. I booted into recovery and was able to use the keyboard as normal. So, SW, not hardware I assume. Is there some sort of KEYLOCK option on a Mac. I am a total Mac newb. Any suggestions??