Hey. I just plugged my shuffle into my PC, opened iTunes, and my iPod is now empty… I know what happened: I loaded the songs onto my iPod, then deleted them from my Library. When I plugged my iPod in today, iTunes saw that the songs weren’t in my Library any more, so it deleted them from my iPod 
WHY?? I’ve looked around on the internet, and apparently there’s an option to ‘Manually update my iPod’, but I can’t seem to find it. I think the Shuffle has difference Preferences to regular iPods…
Help?