To me it sounds like there is a short between the Memory card slot and the controller ports. If you haven't already, try the MC in the second slot as well. If it still doesn't work then the short is between all the ports. It could very easily just be a stripped wire. I would recommend taking it to a local shop to get it looked at and fixed if needed. Otherwise i am at a loss for what could be wrong. Well, i hope that you enjoy posting and have fun gaming.