i have an unmodded cube which i still havn't got around to modding due to a broken soldering iron, it is now open and in pieces but i just reassembled it (without putting the cover on (screws would take too long) but when i boot it up it goes straight to the gamecube menu and doesnt read any discs, as when i go into gameplay it just shows a (?), i think that it thinks the lid is open. What hav i done wrong?