It pays to know your equipment.

Lol, I was in my local photo store a little over an hour ago and they were kind of saying the very same thing.  The one salesman there told me that I had been in there complaining for a year and a half while buying boxes and boxes of paper trying to figure out my printing problem only to find that it was just a little simple sensor.  Retirement is nice, but your brain goes fast while you are traveling and relaxing.