This may or may not work for you but what I did was take the memory card out and put back in three times to make sure all contacts were making good contact and that fixed my problem. Good luck.
Gareth:
Had same problem.
I pressed the small wires and plugs on the top plate of the camera firmly im place and everything worked again.
good luck.
Best regards, Preben
Gareth: (and others)
Had same problem.
I pressed the small wires and plugs on the top plate of the camera firmly im place and everything worked again.
good luck.
Best regards, Preben