My 4G 20GB iPod recently started crashing very frequently. When I restart; it takes about 2-3 min to boot up. First it displays the apple symbol then it displays a folder with an exclamation point. It will then repeat that a couple dozen times. When it finally does boot up, all my songs are gone and the setting are back to their default. When I plug it into my Mac I get this: Initialize just open Disk Utility and does nothing but unsuccessfully gather "Disk Information". It never mounts. Is my hard drive kaboot? It's not even two years old yet!