06-28-2015 02:50 PM
Great advice, thanks. I'm more comfortable with physical repair than I am with programming repair, and I enjoy it. So it's tempting to start in the most interesting place instead of in the smartest place!
Haven't tried a different lens yet. Will probably be able to do that within a few days.
It will be a week or two before I can get around to the software side. Too many other things unfinished as it is, for now.
But I will certainly leave the screwdrivers where they are until the other avenues are exhausted. Thanks for possibly saving me from going down the wrong path!