Can we "back track" for a sec Wotto ? I vaguely recall there was another lamp issue with this game - can you remember the fault and the resolution ? It may be related ?
I think U are thinking of some bulbs that originally didnt work at all - one of them was one of the Hazard lights which made knowing where U were in gameplay a little difficult at times - from memory that was when I had a dodgy wire not pushed in correctly to connector 137 – it was the number 1 wire and we sorted that and it has been fine since.
What this current issue does is allows a few of the (6) Boulder Garden lights to be on a lot instead of one being on and moving around when the bumpers are hit – so you cant really tell what Boulder Garden values you have already scored or what the next one is etc etc - or similar to what I just described.