I was using the laptop without charging and it just shuts off. I assumed it was battery so I got the charger and it still won't turn on. I looked around net and saw the power drain and I took out the battery and power supply, held power button 15-60 seconds, I then Just put the power supply and power up and it won't work. No LED lights was on, it was just all off. I also found out on the Internet that it was bad to put the laptop on "Sleep" mode? I have put my laptop opened and "sleep" mode every time I got to sleep the past couple of weeks before it turned off so maybe that had something to do with it? What can I do?