What are these marks on my MBPr LCD?
I have a refurbished Mid 2012 Retina Macbook Pro. Yesterday, I was cleaning the LCD with very soft dry toilet paper. While I was cleaning it, I noticed marks on the upper left bezel of the LCD. I take very good care of my computer and it never comes in contact with any unusual substances. I clean it often using only dry toilet paper. Does anyone know what these marks are? I'm afraid of trying to wipe them off even further because they don't seem to be coming off easily. I don't think there is any way these are scratches because nothing's ever come into contact with the screen.