Our Leapster L-Max is making a very high pitched noise when turned on. It is not coming from the speakers because it is still there when the sound is off. Putting my ear up to it--sounds like it is coming from behind the screen. Can I do anything about this? We have two of these and the other one doesn't do this at all. Please help

Video Game Consoles & Games - LeapFrog - LeapSter L-Max Console