Well, 3 months ago I had in-home service under AppleCare done on my iMac to correct discoloration of both the LCD and glass panel caused most probably by excessive heat according to the tech who did the repair. The problem has recurred and I called AppleCare today about it to schedule another on-site visit to fix it. They were very gracious about this and after asking me various relevant questions, ordered the parts and setup the service call. I'm supposed to hear from the tech when the parts arrive which are being sent overnight. So I guess tomorrow I'll hear from them. While on the phone I asked about the 3 strikes you're out policy and the Apple advisor laughed but assured me they'd take care of me on this one way or another until it is fixed, including beyond my AppleCare warranty period on a recurring problem like this. So we'll see. I have just under a year of AppleCare to go on my mid-2011 27 iMac and this problem recurred in under three months. I imagine it won't take long for stuff to start melting again if heat is doing it. I do play games a lot and stress the system that way heat-wise. This time they are also replacing three fans along with the LCD and glass panel. From the sound of things when I am gaming there is plenty of fan action going on and I told they guy so but they want to try that. I have a funny feeling although of course I could wind up wrong, that Apple is going to be out 2 LCD panels, 2 glass panels and 3 fans and still wind up replacing this because it just runs too hot. Maybe it's the use I give it but it should be able to stand up to it as far as I am concerned. I'll share how I make out just for anyone that might be interested. They've been very good about fixing this so far. I just want a lasting fix or a new machine if they cannot do that in a reasonable number of tries.