beigledog: Have you had your eye's checked out? Seriously, if you hook up an external monitor and it does not flicker, then you can isolate the problem somewhat. Sounds to me like a possible loose connection, maybe a bad power supply.
I am just guessing a bit here, laptop computers are rough. I had a similar problem many years ago and it was a loose connection. I fixed it and then a visiting electrician dropped his tools on my screen. Cost him $1100.00 to replace it. <g>
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