Hi, Just a stupid question. I've used apple's plenty of times in my life, and I love them to death. However, I have never done a reinstall of a system before. Here's my question - I want to upgrade my parents computer from OS X to OS X Jaquar. However, there is too much crap on their computer, and they just want to start all over again. So I'm heading to the apple store tonight to buy jaquar - after purchasing the full version, how do I go about installing it over everything else? Once I insert the disk, is there an option to do a fresh install, without bringing any of the old files or programs over? Thank you for your help!