I think my iPod's about to go belly up on me. Are there any preventative measures I can take?
→[More:] I think I must have put some questionable files on there recently, because shortly after it started freezing a lot. I deleted those files but the situation remains the same. Presently, when it locks up I can restart after trying a few times, but I kind of have the feeling that eventually it's going to go down for good or something.
Short of backing everything up and reformatting, is there anything non-destructive I can do to make it stop being a butthead right now?