Hi Judi, Jim is referring to the little metal buttons under the push button rubber pad on the top side. you can just prise off the rubber pad and you will see that there are or should be a round metal button in the middle of each of the two holes of the plastic. If they are off centre you can try to centre them again although whilst this will get it going you will have recurring problems as if the little metal buttons have moved the solder is broken and they need to be fixed (see Ron's photos below)
