Well, the rest of the story is that we actually bought two of these kits. The other STM lense is ok, does not make a click noise. I called Canon support and demonstrated the click noise to the girl on the phone. She said this an unusual problem, this lens is usually very trouble free (go figure). They would honor the 1 yr warranty, but suggested I contact the seller first.
So I called Amazon. Had to google their number, as it sure isn't advertised anywhere on their website. But once I found it, got through pretty quickly. They are not set up to accept partical returns on kits, so instead he said they would refund the price of the lens, so I could buy another. If that all works out as they say, then that is pretty good customer service.
