Quoted from toddsolus:
solved my problem....just need to take a needle nose and crimp the sockets a bit This game is quickly becoming the most popular in my collection....It is mucho fun!
Yeah that center insert lamp board is a bear to keep all them lamps working! Just got done twerking mine to get them all to work. Problem is it seems once you get them all working and put the board back in then another one gets loose.
Best way to do it is to pull the board out (easy one plug and a couple cotter pins) and sit down with a pliers and crimp the sockets so the lamps stay tight then put er back in...