Recently, I was diving in West Caicos and met someone diving to 100 feet with a Canon D10. His photos were beautiful and I asked how was he preventing it from leaking given the depth limits of the camera. He said you can find on the internet how to seal the AV port door (I think) and he has had wonderful success (and no leaks) scuba diving with it. I have searched everywhere I can think (including this site) but cannot find the instructions for sealing the port door (or even which door I am supposed to seal). Could someone help me either with the instructions or a link to the instructions of how to seal the Canon D10 ?