Hi. Just bought me a new 27" apple thunderbolt screen. It looks new and it was good packed but i notice in very good light that it's had kind of dry brands that are wide across the screen. Could only see it when the screen is off and i look at it with light from my mobil phone. Sounds strange but my first iMac had a several scratches so i checked out this screen very carefully. I thought apple sent them out all clean without marks after a cloth have dryed it? Is it normal on this type of screens or have i got a pre owned from my local electronic store? Thanks for any answers.