OK, I think I might have fixed this thing.
Just to repeat what I had done earlier, I used a voltmeter to see that the charger was putting out the right voltage and that all the different batteries I had were charged up to the right voltage. That meant the camera had a problem.
I looked down inside the camera to see where the contacts were that would make the connection to the battery terminals. Then I took a finger nail file and polished the surfaces of those contacts and got them nice and shiny.
So far I’ve taken about 50 flash pictures and looked at a bunch of other pictures on the LCD screen and the battery is still going strong. Kind of like cleaning the battery terminal on your car, sometimes good things happen.
Now all I have to do is catch a fish that photo-worthy!
Rootski