If it returns, I'd say you have a dying hard drive.
Also, you can try out Ubuntu without installing it right now if you have an Ubuntu CD. There's an option where it doesn't install Ubuntu but you can open programs and browse the Internet.
Intrade Uncovers $700,000 Shortfall as It Seeks Members’ Support
****!
That reminds me of how awful ESPN's live scoreboard experience has been on their website for the past several years. I love it when a gamescore is an entire quarter behind the actual game.