All of a sudden my CBG standup stopped working when playing but works fine in test mode. I thought maybe something else on the same row or column but everything else also seems to work fine also. I'm scratching my head a little here, any ideas?

Anyone?

I'm testing with my finger in test mode and in game ( glass off ) so tapping it the same in both cases. It registers every tap in test, but does nothing in game. Really confused.

Cleaned and adjusted, it's working perfectly, in test, not at all ingame.

This was making no sense to me at all, the switch is obviously working and it's position being seen as it worked perfectly in test so I just reset the machine to factory and now it's working again....go figure. I did change the CPU and display roms from v4 to v5 yesterday but had played a few games with no problems since then. I guess I'll have to see if it happens again, although I don't know what a permanent fix might be, maybe the roms I fitted aren't quite right?

Thanks for the help.

Thanks Dewey, sounds like the simpsons software still has some unresolved bugs in it then.