Currently I am using nb305 netbook. At the time of using it it drops down by 10% on the remaining battery and then beep occurs in every 10seconds. Can anyone please suggest me that how can I make it disable that is very annoying and at that time you can't do anything it beeps when I listen any music then also. or at the time of video. And I can't use this netbook in public without turning it off. So please help me.