Then, after reassembly of the rest of the unit, it powered up
with no more zoom error. I guess it was just one of those
things you take apart, put it back together and we'll see
how long it works.

That's good news -- especially after I gave you such a bad time.

I sincerely hope it continues to work properly. Too often, products "play
nice" while you're messing with them, then revert when you leave them.