So, I got my new MBP about 4 days ago. I'm absolutely loving it. However, I didn't do a fresh install of OS X and now I'm reading about how much space other languages and random printer drivers can take up. I've also read that most people recommend doing a complete reinstall of OS X as to clear up this type of space. So, now I've installed all kinds of things and have lots of important information on here now. My question is, and I'm sorry if I sound dumb or didn't search enough: If I re-install Leopard, will it erase the personal information I already have on here? I sure wouldn't want to lose all my programs. Thanks.