The funky ghosting and fadedness point to hardware, not software.
If you plug it in to an external monitor, does it work?

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I haven't a clue. I don't have an external display that supports DVI.

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That model can display to a VGA monitor, with a DVI-to-VGA adapter (which was included originally; but if you got yours used, it's understandable if you didn't get it; and if you got it new, it's understandable that you may have lost it by now.)