I have an unbootable 2008 iMac I brought it in to the Genius Bar this morning. Long story short, he told me to bring the iMac back home and try reinstalling the OS. He thought it would fail, since I have a problem with the user record (or profile?), but said to try that anyway first. It did fail. The install ran extremely slowly during install (about 20 minutes for each "minute" on the progress bar). Eventually it told me it failed. The next step was for me to then erase the drive (I have a backup on Time Capsule) when I see the option to run the File Utility from the install CD, then continue with the install. I choose to erase the disk, with the journaling option, and then let it go on its way installing. The problem is that it is now two "minutes" through the progress bar, but its taken almost an hour to get that far. I assume it will once again fail. We had run the Repair Disk at Apple this morning and there were no errors. I ran it again before each install at home and no errors. What could this be? What do I need to do to complete the install?