MrHolley, Hi I have the same problem and send camera to Canon and they told me that they need to replace a circuit board that will cost me: $770 USD.What about you ? Is this a bug that can be fixed with firmware ?This is the first Canon camera in ye...
Been a Sandisk customer always, just remember that Sandisk includes a lifetime warranty in some of their Pro or Extreme models. I got 2 months ago a problem with a Sandisk extreme SD I broke the plastic switch lock, contacted Sandisk in their webpage...