Long story short, My iMac stuffed up not long ago so I sent it to Apple to get it fixed (Apple Store Chadstone), I called them a week later, and Ive been told that they were still working on it. A few days later I called again, they finally found the issue (sort of) and decided to replace the logic board ..anyway, I said OK, they later called me back saying they have replaced it but a new problem occurred, the audio/speaker is not functioning etc I said well I will just take it back and fix it myself because I need it for work, I took it back and this is what I found so far: iMacs serial number is gone! Oh also, on the repair report paper, it says I purchased this iMac on March 11 2009(March 11 is my birthday BTW), but I actually bought it in Nov 2008, so according to Apple Store, my iMac is now officially out of warranty. (Apple has 1 year standard wty). If you are thinking of buying a new Mac with AppleCare, think again.