I cracked the screen of my old rMBP two weeks ago . I decided to sell it and buy a new one to replace it, since I wanted 512 Go anyway. Well I haven't had a lot of luck. I've already exchanged 2 because of screen then wifi issue. So I'm gonna calm the **** down and keep this one since it doesn't have a major problem. There's a weird thing with it though. Anytime I have my left speaker under direct light, it shines like there was glitter in it . Pics related, even though there are more spots and they are shinier than it seems on the photos. I've rubbed it pretty hard with a wet cloth, but nothing goes away. I think they're small scratches that shine like that. But it's pretty annoying, at first I legit thought there was glitter. Anyone ever had a similar problem? How do I get rid of these?