I'm not having any problems, but I just ran the Verify option of Disk utility, and it said: Invalid volume file count (It should be 488658 instead of 488661) Invalid volume directory count (It should be 137509 instead of 137506) The volume Hard Drive was found corrupt and needs to be repaired. Error: This disk needs to be repaired. Start up your computer with another disk (such as your Mac OS X installation disc), and then use Disk Utility to repair this disk. How worried should I be? Will this resolve itself when I install Lion, or should I fix it 1st on Snow Leopard? If I need to reinstall Snow Leopard, what do I use for a bootable disk? Will a reinstall wipe out my files? I do regular backups, but obviously, I've never had to do a reinstall. I have a Macbook, running OS X 10.6.7. Please help.