hello. I have just tried to do a firmware update using the card and the file download from canons website. the process of updating had started and quickly got to 86%, but now has stopped completely. I have tried going from 1.7.1 to 1.9.0 and after several attempts it will not complete. I have tried version 1.8.0 and still no joy. I am currently trying to reinstall the same firmware that was on it at 1.7.1 and it has done the same thing with the red write light flashing constantly has anyone got any ideas or is it a send off back to canon?