When I turn on my HP Pavilion laptop the screen is filled with vertical colored lines, then the screen slowly turns white and then it turns black starting from the edges. After two days of this, it booted up with a recovery program and later everything looked fine. Now I'm back to the original problem. The screen goes black on it's own and when booted, goes thru the wierd routine. Any ideas?

I'd start by double-checking that the screen resolution is set to the proper "native" value for your screen.

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