I just got a mint condition panasonic tz3. There is no memory card with the camera. Here's what I'm having trouble with. The lcd viewfinder is just a black screen. It will display pics that were left in camera, and it will display all settings. When I turn camera on, it says images will be stored in built in memory I guess because the card is missing. All functions work, the zoom, changing settings everything but no viewfinder. I have taken out battery re inserted it and done a factory reset. But it still won't work I've searched for an answer but can't find any new info. Any help would be appreciated