Does anyone know how to access the hidden functions and menus, such as finding out how many hours the panel has been running for? Also, I have never been able to get very good black levels on my plasma. Even when I turn brightness and contrast right down (which I don't like doing since the picture looks too dark) I still get very grey blacks. In the menus, there are some greyed-out controls such as gamma. Does anyone know how to enable these? I'm sure I could get blacker blacks if I could just turn the gamma down. Help!