I sent the camera in and they just sent me an E-mail that they were going to exchange my "new" hardly used camera with a used one. I called them to complain, but they told me that that's they way they do things. Also, the used camera has the same serial number sequence that has problems.
Not much
I've owned about 6 Powershots; This one was out of focus for about half the photos and videos from day one; I pre-ordered it because I wanted to have it for my vacation in Cancun.