The chapel computer was strangely staying almost dark, and it was too late to look over the problem (so I thought). Delta Force retreated to the office computer and conducted the service.
Calm, yet compassionate, I went back to the chapel later. "When in doubt, check the plugs." I looked over the cable to the box. Oh-oh. It was strangely jammed in. A couple of tries made it good again. A power cord was definitely not plugged correctly, so I found a replaced. The chapel computer was recently worked on (via India) for sound problems (not sound doctrine problems).
When I rebooted the computer the screen came on beautifully and the sound was better than the original fix, maybe from rebooting after the fix.
I think perhaps cleaning knocked two separate cords a bit loose, so I will ask.