Ok so while i wait for my new iMac to be delivered in the next few days i thought i would ask a couple of questions for advice. I've been seeing a few posts where people have said that they leave their iMac for a few hours before turning it on when they get it, is this something you would all advice or is it just something that some people do for no reason?? Also i've been seeing a few people and even a thread that complains about the Fusion Drive, screen yellowness and screen bleeding. Do you guys think that these models (2012) have higher failure rates than the 2011 or are people blowing it all out of proportion?? this being my first EVER iMac i'm not sure what to expect. However i do own an iPad 3rd generation and an iPhone 4s and i'v never had any problems with either of them.