Hi, I know this must have been covered before but I couldn't find it so if anyone has a link they'd be happy to share, I'd appreciate it. Basically I'm having to completely reinstall OS X because I need to "upgrade" from Quicktime X to Quicktime 7 Pro and also my sound has completely stopped working. The speakers don't work and neither does anything plugged into the headphones socket. I'm hoping this reinstall might fix it. I've backed everything up but (yes it's quite obsessive) 90% of my iTunes library is rated. It makes it easier to make playlists etc, I've backed up my library but I was wondering if anybody knows how to conserve the ratings / play counts / playlists etc. I've done a reinstall before and I lost all this info. Sorry the post is so long, I'd appreciate any advice anyone can offer. Thanks in advance.