Bunch of questions actually. What are the 2 extra wires for, it comes with 4, works with 2, what gives? Why is there a USB port on the back? Is that so you can still use a 4th from the PI? Why can't I see the bottom of the screen running Raspbian no matter what setting I try? It doesn't seem to have that issue with Retropie. All I can think if for now.