This unit is pretty good but I got it without a box. Does anyone know what the button on the back of the unit does? It is opposite on the backside of the unit? It does NOT seem to make any difference on the screen. Also what do lights mean that are on the side. I am also trying to get the instructions from the store where I bought it but they have changed owners and don't know their ____ from their face. Please help if you can.
Warren E. Justice
Warren E. Justice