I just received a mZuiko 14-42mm Mk II lens and came across the below advice on a review of the lens. What/where is the "reset in the menu" that is mentioned? After a long conversation with an Olympus tech rep we found out that the lens needs to be reset with the camera, as both units have firmware. Instructions are to shut off camera, lock and remove lens, re-install lens but do not unlock. Turn on camera. Go to reset in menu and follow instructions. Then you can unlock the lens and use. I did all of the above and the lens works very well.