Hey guys, so up until now, my iMac has been pretty much perfect. Until about a week ago.. So first of all, I wanna start off by saying, I went to the Apple Store about a month ago to get my HDD replaced in my 27" because the Seagate I had was REALLY loud. So they did that, and I go it back, with plenty of problems. First of all, when I wake it from sleep, the screen is yellow for about a minute or so and then goes to normal. The fans are getting louder, and the iMac itself is vibrating, constantly. It even shakes my desk. There is some kind of LED leak on the side, because when I'm viewing a black background, there is this one spot that's REALLY white at all times. No matter what angle I look from. And yes, the new HDD is basically just as loud as the old one. Also, I know this can't be proven, but when I got my iMac back from the Apple store, it has a little TINY dent on the bottom of the screen (by the speakers) and also the bottom of my stand has a big scratch on it. I called Apple Care and told them about all this, and mentioned that I can't really give them my computer for another week, because I need it on a daily bases. The guy was really nice, and told me to talk to the store manager, which I did, and she said that she wants her 'team' to take a look at it, and see what they can do. Also the guy noted that if the manager said no, I should call Apple Care back and talked to customer relations. Anyway, I need to get this machine replaced, for those of you who have gotten theirs replaced, what process did you have to go through, and how long did it take?