So i purchased my iMac around last June when the update happened and then i received the dreaded email regarding the hard drive recall, so i had it replaced, this was right around that time..everything was fine up until now a few days ago my iMac started running like a tractor. It just started making a loud buzzing sound when it runs....kinda sucks. The very original hard drive was almost silent ..the updated one was a little louder till now...anyone have similar story/issue? I hate to keep replacing my hard drives and last time they left a bunch of crap behind the glass screen, so i had to wait an extra hour for them to take it off and clean it again. I wonder if i can just ask them to replace the whole computer?