Out of nowhere my 4th gen iPod has the screen with a folder, exclamation point, and a web address (www.apple.com/support/ipod) and wont start up. This happened over the summer so I brought it to the apple store and the genius flashed it with some software and it booted back up. She said the hard drive is failing and this could happen again at any time. Well it just happened again but im hoping someone can point me to the software she used to bring it back to life. Id rather not make a trip to the store if i could do it from home.