Green external display

I have a black MacBook I purchased about 1.5 years ago. I can vaguely remember not having this problem at the beginning, but since then every time I plug in an external display it is green.
Everything else is fine, the detail is good...but everything is green. Here are the things I have tried to fix it...all to no avail:
Wiggling the cords (either the adapter or the VGA), new VGA cable, new adapter, Apple Hardware Test, reseting the settings during restart (holding the P,Alt,Command...something like that)and of course I've tried a number of different external displays. I think I've tried **** near everything and its still happening.
Since its 1.5 years old, Apple refuses to do anything without payment, even though this is a problem I've had since the start.
Any suggestions?

There are four things to try, in order from easiest to hardest:
1) Check the color profile for the external display by going to System Preferences > Displays > Color Profile. See if you can remove the green tint by calibrating the color profile of your external display.
2) Create a new user account, log into that account and see if the issue persists. If it doesn't, there's a corrupt file somewhere in your user library that we'll have to track down.
3) Perform an archive-and-install of OS X. This will reinstall your operating system and move your documents and settings back.
4) Perform a CLEAN install of OS X (NOT archive-and-install) and manually move your documents back to your new system. This will take time, but it has the advantage of restoring every part of your system to the factory defaults.
If none of those procedures fixes the problem, you've got faulty hardware. Unfortunately, you're correct: Apple will not fix it for free now that your warranty has expired, even though the problem was there when you first got the machine. From their perspective, there's no way for you to prove the problem was there a year and a half ago. If this turns out to be the case, you've learned a lesson the hard way: don't put off repairs, and consider buying the extended warranty.

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https://discussions.apple.com/message/15488605#15488605
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- * Links to my pages may give me compensation.
Message was edited by: a brody

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D. Shamburger wrote:
What would be the best external display for the MacBook Air? I would love the Cinema Display, but it just costs a fortune. Do you know where I could get one (or something else of similar quality) for less than $400? (preferably the kind that has iSight and speakers built in)
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