Without thinking the other day, I inserted a Majesco made Genesis 6-button controller into my A3000. Those were the ones with the switch for rapid-fire/slow motion and came rather late in the Genny's life. Late 90's IIRC. Anywho, must have blown something in the CIA chip responsible for recognizing a 2-button controller in Port 1. Nothing wrong with mouse at all though. Glad I have a few CIA's laying around
