My hard drive apparently has a few errors that cannot be fixed by running the disk repair utility. Whenever I run "verify volume" in OnyX it gives me a message that the disk needs to be repaired via the disk utility on the installation disk, however when I run disk repair no errors are found. My computer has been giving me a few problems here of late and I've tried everything I can think of, so I'm down to completely reinstalling OSX. I'm leaning towards a complete reformat of the hard drive and a fresh install, so I would lose all my files and documents (which are backed up). A few quick questions before I pull the trigger: 1. Is there a way to export my iTunes library and address book contacts so those can be preserved? My sister got a new MBP for Xmas and as far as I know she still hasn't found a way to transfer her library and contacts to the new computer (she had a powerbook g4), so this is my biggest fear in doing the reinstall. I do have an iPhone 4, so if it's possible to sync the phone, then transfer all files from the phone to the computer after the reinstallation that would be nice. 2. My current hard drive is an upgrade from the factory hard drive. The original hard drive is now in an enclosure serving as a small external hard drive. It is a bootable drive and has software on it that I do not have the installation disk for. Would I be able to run that software off the external hard drive if I boot from the internal hard drive after reinstalling OSX? I suppose I could try the "archive and reinstall" option so the OS is reinstalled while preserving those files, but I would really like to start from scratch if my two questions above has simple solutions. TIA!