Hello all, I am buying a 15in rMBP this week. I have seen quite a few threads on here discussing issues with the screen. I understand these are the unlucky few and more than likely the rMBP I end up with will work just fine. With that said, there is still a chance I might get unlucky and I would like to save my self some time, if possible, in the return/replace process. Do you folks have any suggestions for ways in which I can test/check the rMPB I end up with before leaving the store to make sure everything is functioning properly? Thanks in advance. This is my first mac since the 12in powerbook I bought for college in 2005. Needless to say, I am really excited.