I have a Fever Queen and have hit the big bonus 3 7s on the top reels on 3 on the bottom and everything comes on music and sounds etc and win number windows etc but it will not function after this win mode it is frozen=still playing the big bonus music etc. I checked the knob switch lite on the main board it is working each time you flip the go knob. Could there be a issue with the program that works the big bonus round? i checked connector ribbons all seem fine and seated. Otherwise mach works for all other win modes except the big bonus win mode. Again it goes to the big bonus start mode lites and sounds but it will go no further when i activate the play knob.

Wally