Can anyone help me with this N73 charging problem? It seems that my N73 will never stop charging even if I left it charging for many hours.. Even if the battery signal is full, it will drop to one bar or low battery signal after I only talk for a few minutes - 30 minutes... Does my battery leak. Do I have to change it? Alsa when I charge it overnight, sometimes, the phone will turn off on it's own.// thanks