I purchased a RMP for Christmas. I was away for the Holidays and I finally got back on 1/2/13. I got the computer set like I wanted and decided to install WoW. I know I haven't played in a few years, but a friend had purchased MOP and needed some help. I installed the came on Sunday and played for three hours. I then played for thirty mins today and the RMP locked. You can see the screen had little pink dots all over the place. I tried to reboot and no luck. I called Apple and they had no luck. Long story short they want me to take it to the local apple store for replacement. I am wondering if I will be wasting my money if I replace the RMP. I didn't expect a 4K notebook to die b/c of less than four hours of WoW.