The strangest thing happened a few days ago. The display on my A10 started shaking or bouncing quickly vertically. I went to bed and when I woke up the next day the LCD screen was black. Upon closer inspection I could barely make out the display, as it should be, but almost completely black. I plugged in an external monitor and it works fine - the color and brightness are normal. If anyone could suggest an action plan to resolve my problem, I would be eternally grateful. I don't think it's my vid card as the display is just fine on the external monitor. Does this mean my LCD screen has burned up? I don't get it. Much thanks in advance.