Hello, I've got a year old iMac that the hard drive crashed. Just goes to grey screen. I tried to repair the permissions off the OS X disk and it wouldn't let me. I order a repair program and put the CD in and held "C" to get it to start from the disk. The Mac tried to start from the CD and then ejected it. Now it's ejecting the OS X CD as well. Hope somebody has and idea on how to help. Thanks.