My iPod/iTunes was working perfectly. Last sync was 2/29/12 with no issues. Have used my iPod almost every day. Just downloaded some new music earlier this week and went to sync, but it cleared out my playlist on my iPod. Tried updating to iTunes 10.6 and wasn't able to. Saved my library to an external drive, unistalled and reinstalled iTunes. iPod now recognized, but it can't find the majority of my music. Went to my saved library and the music isn't their either! Tried restoring an older library from 8/11 and that doesn't seem to be working. Basically, all it has are the songs I downloaded since 6/2011. Basically, 95% of my library is gone. Help!