I bought a aluminum MBP 15.4 2.53ghz from Amazon. I have the 84 screen and I'm noticing some light bleed which is annoying and the contrast isn't that great. There are also slight bumps near the speakers which i can ignore. I want to exchange it but I have to travel for a month and don't know if i will have a replacement on time,and there's always the chance of getting one that is worse. So, has anyone had their screen replaced due to bleed? I don't think i can get a replacement from an apple retail store since I didn't buy it there. Also, if i get a replacement do i have to format my hard drive or anything, i have some programs in there which have the serial number and registration info. thanks for your help.