Hello,
I recently purchased the F717 at Sears. I had printed out the serial list for the focus problem and brought it with me. The Serial number was on the price scan sticker!

Not sure if other stores have this same sticker, but if your worried about the focus issue Sears is one way to go.
On another note, THE CAMERA IS AWESOME! This is my first digital camera and so far I have no complaints. The nightframing mode is excellent. The pictures come out as if they were shot with all the lights on! Macro capability is also great. All 4 now....
Will
PS I welcome any questions or comments...