Hello, I have an Addams Family and just recently I have a problem when I lock two balls for multiball the third ball will not load into the shooter lane. The game will eventually go into the ball search and will just continue to do that. If I open the coin door and manually load the third ball and shoot it into the playfield the game doesn't seem to realize what is going on and doesn't respond correctly to the ball. I'm hoping that someone could point me in the right direction here as I'm not sure where to start. Do you think it is some sort of switch problem or possibly a circuit board issue? Everything else on the game seems to work fine.