Hi. Bought this pin a few weeks ago with a few simple issues which I sorted. However, new ones have since surfaced. The main one is the ball count. On start up and 1 player the ball count goes to 1 but immediately jumps to 2 so I only get 4 balls. The Jet bumper lights are out. However, if I press for 2 players the count goes back to 1 and the bumper lamps come on but still only one player. If I then press for 2 players again the 2 player option activates and we both get 5 balls. Any ideas? Thanks, Steve