So i just noticed a difference in what seems like the layering of my trackpad in the upper left hand corner. It is like it cracked underneath, but its undetectable to the nacked eye unless you look at it from an angle. When you look at it, it looks like there is an area of discoloration which is the same area that feels differently on the upper left hand corner...any ideas? Should I take it back, its less than a week old.. Bought it on Wednesday...Think they will replace it for me?