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PC laptop by Dell with a 15.4" display. Succeeded the Inspiron 1520.

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Bottom third of screen goes grey. Seems connected to door tilt.

This problem exists both in Windows 7 as well as during the laptop's setup program (when I hit F2 at boot up).

If I slightly tilt the script up or down, the bottom third of the screen goes grey. The grey disappears as long as (1) I maintain a certain angle and (2) and don't try moving the tilt of the screen. If the grey ever appears, I have to play around with the angle of the screen (scratching head).

I followed this you tube video (http://www.youtube.com/watch?v=9P_6fw-Vu...) to tighten the screen. Although I succeeded in tightened the hinge, I am still encountering the problem. Note: I was unable to tighten the lower hinge screws (I was only able to tighten the top hinge screws located behind the screen bezel).

Any suggestions would be appreciated.

Cheers!

Mark

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I just verified that an external screen, connected to the laptop, does NOT show the grey (that is, the external screen displays properly).

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Sounds like the wires or ribbon is coming loose or has a short in part of the wiring or ribbon. This wire or ribbon will be connecting the screen to the motherboard. When you find it, you'll need to replace it with a new wire or ribbon. eBay has stuff like that. Good luck.

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