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First thing would be to try a known good LCD and yes I know that is a bitch. Or go moan and bitch at Apple as a machine that costs $$$$ should not fail in 2 years.
I know this newer stuff sucks. Need to scrape together some cracked LCDs for testing and such. Seeing that the backlight works there is a good chance it is just a bad LCD. But like I said, go moan and bitch at Apple especially if you are EU based they will fix it as they should.