I bought my 15inch rMBP last June, and only within the past few months have I noticed horrible ghosting on my screen. I thought I was one of the lucky ones without this issue, but that obviously changed. I did this test (http://www.marco.org/rmbp-irtest.html) and the results were awful after only a few minutes. The whole issue actually appears to be getting worse as time goes on. If I take it to the store and show them that test, will they replace it free of charge? Thanks for any help on this matter! Here's what it looks like!