If you brought it from the AppleStore (brick and mortar version) you can return it, you have 14 days to exchange due to unsatisfactory, imperfections (excludes dead pixels), refund etc... If you seek a refund, depending on which country your in, they might charge 10% restocking fee cause it's been opened.
Personally, if i was you, i'd goto the store where you brought it from and complain, chances are they will just swap it out for you cause you brought it new. The longer you wait, the harder it'll be!
I will take it in tomorrow morning... i'm just worry that they won't give me an exchange...