Yeah, huge difference between using the last couple of days and now. I think I just had the power settings too aggressive for the computer. My wife mentioned that a couple times when she was up at night she could hear the fan on the computer running pretty loudly. I guess I should have paid more attention.
I don't understand what got so hot. The screen was off and the computer wasn't engaged in any, uh, computing. So I don't know what the problem was. But it is a night and day difference and the only real change was resetting the power settings to the default.
Lesson learned.
Tom