the front screen on my VX 7000 has stopped working. no cracks. its not even trying to come on. When I open the phone, the inside screen doesnt come on. but if i push one of the buttons it will come on and function normaly, but the front screen still stays black. Is there a switch that turns the front screen on when the phone is opened. this might also explain why the interror screen will not turn on until a button is pushed.. thoughts? is this a simple fix? i just got the phone for christmas.