Is the CD Eject button on most drives a simple momentary switch with two polls? I've taken mine apart (I'm no EE) and it seems the witch has four posts, three of which APPEAR to go to the same place ...

I came home tonight to find that one of the triplets (which one is impossible to determine ) had popped open the CD drive on the computer in the family room. Not normally a problem, as they do it all ...