Hi, sometimes when balls go up into the boat (Stugots Multiball) I get flaky results. Exa. when one ball goes up it might say 2 ball lock. The switches in the boat are working correctly. The game is running CPU version 3.00 and Display version 3.01. Does anyone know if upgrading to the last version (CPU 5.00 / Display 5.00) will help / fix this problem?