Top of the screen will flash intermittently

I have a laptop g6z 4 months old HP that was bought new at HP.  It has Windows 7 Pro 64 bit.  It is attached to an uninterruptible power supply.

He sometimes "flashes" at the top of the screen.  Flashing is only at the top.  The rest of the screen is stable.

I ran the HP tool, but everything indicates that it is correct.

Which can do this, and how to solve the problem?

Thanks, Terry

I call or e-mail HP and ask for warranty repair.  It sounds like a defective screen for me.  Maybe give it a day or two to see if some experts have another idea.

Tags: Notebooks

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