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Unexplained computer behavior


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#1 Gernady

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Posted 26 September 2012 - 06:29 PM

Have Pavilion a1430n new in 2006.
No problems until now. After about 2hr on more less, on certain heavy in detail pages screen starts to slowly pulsate darker and lighter. White 1/16 inch bands flash vertically every few seconds, then colors and shapes slowly fade to spotty white then darker and darker until solid dark blue. When the fading into white starts I lose control over mouse computer needs to be shut down with the button and reboot. Never heard of such a thing I am fairly computer literate.

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#2 Gernady

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Posted 26 September 2012 - 06:40 PM

Am using Win XP professional, this started after I made a copy of hard drive using windows backup.




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