Answer to: Why is the screen black on my Disney Asus MK90H?This video will show you how to take it apart and where the battery is which looks like a black rectangle. You should also know the fans on these models are prone to failure so it is best to monitor the temperature. The power issue sounds to me like a loose solder joint but could be many things including the power supply or even software/hardware battery management letting the netbook know it is plugged in. It is possible you dislodged the ram when opening. http://www.youtube.com/watch?v=ZFlZ2dweL...