Can anyone tell me how to reset the breakers on the Mac 25? I think I've blown two of them (one I don't know, the other trying to fix the first), but I can't figure out how to reset them. They push in and out, but it doesn't do anything. Also, it looks as though the breakers themselves are on the negative wire. Does this sound right? I thought it would be on the positive...Thanks for any help you could give me!Mister Jack