About a month ago I purchased the 15" MacBook Pro with the glossy high-res screen (not the retina). The screen is the LTN154MT07, which seems to be manufactured by Samsung. After some use, I'm noticing a very faint pinkish tint on the right half of the screen, which is more noticeable when looking at white or very light greys. I have tried calibrating the screen to no avail. Does anyone know if this is normal? My 2007 Macbook Pro did not have this problem, and it's starting to get a little frustrating. Is there anything I can do, or should I ask Apple for an exchange? Since I bought this through their online store about a month ago, I don't know what their policies are. Thanks!