When I got home from lunch today I noticed that my Imac was unplugged. I thought nothing of it, so I eat my lunch then after I plug it back in and noticed a weird sound and the screen was also staying plain white. Then a box came up. I restarted and put my snow leopard disk in and tried to see if I could repair my hard drive, but it was a no go. My mac didn't even pick it up, so I knew I was 100% sure it was the hard drive. I said to myself hmm this shouldn't be to hard and then I youtubed a video and was amazed how much you had to do. Well I went out and pick up a 1TB hard drive. Well that was a fun experience installing this hard drive and it will be the first and I hope the last time I have to install a hard drive into this computer.