I can't turn on my 300D. I've tried fully charging 2 batteries and neither makes a difference. I've also tried the batteries in the battery grip but no luck. I bought the camera from Jessops last November so I presume it's still under guarantee. The problem is that I live thousands of miles from the nearest Jessops and in a land where customs and exchange regulations make it impossible for me to send it over. Could it be something really simple that does not require opening up the camera? I could wait until I make a trip over to the UK to get it fixed but I don't want to lose the use of the camera for months if there's something that could be done.