Bad Video on LCD but OK on external monitor

I have an hp pavillion zd7000, works fine with an extenal monitor attached, but the lcd video has a green line across the lower half of the screen and the image itself (desktop or otherwise) is split into 4 smaller screens. (the mouse appears to move across all the screens). Does the fact that it works great with a monitor mean that the lcd screen is bad or that the video adapter (which is on the main board) is at fault?
Tburke6025Asked:
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blue_zeeCommented:
It's obviously a problem with the LCD display.

Either get it repaired/replaced or use external only.

Zee
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Tburke6025Author Commented:
Thanks...thought so, just wanted further confirmation.
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blue_zeeCommented:
You're welcome.

Sorry for the bad news.

Zee
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