Recently, I discovered a tiny white spot appeared on my rMBP screen. It is not noticeable when it comes to movie watching or photo editing. But the spot becomes obvious when I am surfing the net as most of the websites are blank in that area. I am afraid that the spot may become larger or more spots will be developed later on. Is It a manufacturing flaw or the result of daily usage? Does any rMBP user encounter the same issue? Should I take my rMBP to the Apple store to have a check on it? Thanks.