If you were one of the many people that upgraded to a new iMac back in May when they got new hardware you aren't alone. We reviewed the new iMac when it launched. The machines got new processors and larger storage drives. If you opted for one of the iMacs that had a 1TB HDD from Seagate inside you may need a new HDD. Some of those early iMacs had an issue with the 1TB HDD and Apple is looking to replace those drives for you.