I put a full body invisible shield on my iphone 3g as soon as I stepped out of the Apple store. Recently, I have noticed that there are straight line scratches on the screen and it shows as a pinkish color. In order to test if this is from the shield or that my iphone has dead pixels, I used my fingernails to draw a straight line on the shield, and it then shows up as a scratch with a pinkish color. Can anyone with a shield test this to see if its just me? What should I do because its starting to be very distracting?