I purchased a Toshiba a200-ah7 less than 2 months ago. A few mornings ago I tried to turn it on and was greeted by a blank screen. Same thing when I Plugged it in, unplugged it, took out the battery, put it back in etc.... When it is plugged in, the plug in symbol is the only light that goes on but no matter what I do or how long I hold down the power switch, the power will not come on. Any thoughts?