I just opened my new MacBook Air, and the screen almost feels like there is a protective film over it, like comes on the phones, and I am not sure if there is one or if the screen just feels sort of 'rubbery' almost instead of 'glass-like' like all other laptops and computers. So I guess my question is, is there a protective film on it that I am supposed to take off, or is it just the way the screen is? Please and thank you, for your help in advance.