Matt Rock's Forum Posting tip #5682
Never,
ever, post while under the influence.
Sorry about that. Moving on. Yes, if you upgrade your OS to a newer OS, I'm pretty sure it formats your hard drive (or at least it did it to mine on my last computer). Backup all of your crucial data and re-install any of the software you purchased... Think of installing a new OS the same way you think of getting a prostate exam... it's a pain in the butt, but you'll only need to do it every few years
"Hell is an Irish Pub where it's St. Patrick's Day all of the time." ~ Christopher, *The Soprano's*