Hey sorry if this is a stupid question but I just bought a Gold Cart of Camericas Micro Machines Game on my NES. I cleaned the contacts really well and when I plugged it in to my NES it looked like the screen loaded fine but was blinking. I see the screen load and hear sound but the flashing doesnt stop. On the back of the cart there is a piece missing I think and it has some contacts...does something plug in there I didnt know about or what? If someone can help thankyou.