I'm wondering if others are suffering similar disk reliability issues with their '11 iMacs? Surely I can't be this unlucky? I ordered an new '11 iMac and since then it has been disaster. I'm now on my third machine, the others being RMAed due to noise and disk issues and now some three months later my third machine has failed. The secondary WDC is now reporting various disk errors, goes missing in disk utility, errors saying disk saying it has been ejected impropoerly (I would mind improperly ejecting the whole machine out the window!). Tried the usual First Aid, PRAM resets, reformats etc - nothing; and also no luck with the AppleCare support line. For good measue it also won't boot into Windows - seem to be a problem with the primary SSD? What is frustrating is I now have to spend another day flogging down to the (not so) local store to get them to fix it. I reckon I've been without a machine / trying to fix it for longer than I've had it in use properly. To heap on misery, the usual excellent Apple support has gone missing. Three hours on the phone from support to US after-sales to a supervisor to customer service manager in Eire. The last leg was 35min on hold only to be told the won't do anything other than repair it if I take it to the store. Never, ever again.