Drafted an answer a bit ago and somehow lost it before posting, so....
Chris Burkard' (210 422-0489) RV Repair extraordinaire came to the coach and, being thin, was able to get back into the invertors and find that yours truly is as blind as a bat.
Apparently I had missed the open circuit breaker that disabled it. Pushing it back in has us working fine and hoping that whatever caused it to pop in the first place was an anomoly...we'll see.
Once again, I have learned a great deal more about my coach through the help of a great group of people. Thank you, Thank you, Thank you.
You should see the big smile on Barb now!