Line of red pixels

I got a MacBook Pro 15" less than a month ago and today a streak of red pixels appeared in the middle of the screen. Anyone else has had this problem on the new Mac? I have an appointment for next Monday at the Genius Bar, I would like to have some feedback, perhaps is a defectous line of screens?
Cheers
PS

I sent it in for repair once already. I don't remember what they did; something with software. Nothing huge, because when I got it back my invisibleSHIELD case was still completely intact. I guess I should just send it in again? Think they'll just give me a new one?

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