so i restarted my computer last night, and when it booted back up i got a screen with a flashing question mark inside a folder so I went to the mac support site, and did what they recommended...booted up with my CD, opened up Disk utility and attempted to repair disk under first aid. Except it won't let me click repair disk. so I tried everything else they recommended on the site, and nothing is working. http://support.apple.com/kb/TS1440?viewlocale=en_US anyone else had this problem? Is my harddrive just shot and need to be replaced?