Hi All,   I've been given a Nikon R10, which I'd really like to get up and running. The electric zoom and lightmeter both appear to work perfectly, but the motor drive does nothing at all when the trigger is fully depressed.. I've never used a Nikon camera before, so was researching if anyone had experienced similar problems, and realised that this camera has a switch on the back which is not in any of the manuals or pictures from the internet, and so can be assumed to be some kind of modif