A friend of mine - who's no techie - has this camera. When it's switched on, it almost immediately flings up a message saying "Error 70" and a load of stuff about turning it off again, removing battery, etc (I can photograph the message if it's likely to be of any use). Occasionally, you can get it to switch on, whereupon it will throw the Error 70 the minute you try to take a photo. On other occasions (possibly if the settings knob is turned to movie), I can get it to hang with a message saying it's writing the image. My researches so far suggest that this can come about as a result of iffy settings that aren't compatible with the camera model, or an actual problem with the camera. I've tried different SD cards, as there is some suggestion that it can be a write error, but that hasn't helped. I've also successfully reflashed the firmware (to 1.0.2), and downloaded the remote control software and successfully remote controlled the camera - at least to the point where I can get it to do an Error 70 again The reason for doing the latter was because, as this is the "Rebel" model, it lacks the C1/2/3 modes which seem to form the basis of the main solution to this problem - the suggestion is that if I can set it to use an acceptable image format, the error might go away. But I haven't been able to do that, either. So I'm stumped. Is/could this be a hardware error? Is there some little bit of config magic I've missed? Any other suggestions as to how to go about fixing it?