Mystery solved! Curiously, everything on my computer began to freeze or go batstuff crazy. I checked my “power button” and Microsoft was the culprit. They dumped a humongous update on my computer and after a reboot and 30 minutes of “updating do not turn off your computer”, I now have a working computer and CM seems to be normal again. Weird that it affected CM that way, but if it happens again, I’ll know who to hurl expletives at. Thank-you everyone for your suggestions.