Hi - I have an unusual problem with my (new) RX100 mkII. If I try to review images with the camera switched off, i.e. by pressing the image review button, I get the message 'accessing' and nothing else. If I then turn the camera on I am unable to take pictures - a short line of dashes appears in the top left of the screen, and I can't turn the camera off again. After a few minutes it seems to reset itself and behaves normally. I should say it doesn't always do this, but often enough for it to be a significant problem. Can anyone advise?