I have a Black Sheep Squadron.
http://www.ipdb.org/machine.cgi?id=314

Works great usually and the family loves it.

But of course, something strange started happening...

I push the start button once, and it sets up for one player.

Then, I push again for a second player and that works.

But then it immediately starts a third player.

A friend suggested that it might be a switch error somewhere, but was wondering if anyone has run into this problem before.

Thanks!