I work on my Gateway while sitting on the couch. I surf the Internet and then watch TV. I surf a little more, and then I watch more TV. Some nights, when I slide the computer near me because I've shifted in my seat, the screen will go black and I have to push the On/Off switch until the computer shuts down. The computer, when the screen goes black, is still on, but no fingerpad strokes or combination of key stokes will turn the screen back on. Super frustrated about having to turn the computer off "the wrong way" a couple of nights a week. Any advice??? Thanks!