I have a Wonder Review that when I turn off power for more than a couple days it will eject all the hopper coins when I turn machine on. Now if I only leave machine off for couple days when I turn it on it come on with credits and works find. I have changed switch positions on power supply to every combination with no change. I think this problem is not something to guess about, but something that someone knows just what is wrong. I'm hoping that this may reach that person. Great site Thanks Tim