I was shocked yesterday to discover that all my music on my 3G had been deleted. After a bit of playing around (and a failed attempt to reupload the music!), I realized that everytime I check "Manually manage music and videos" (as I prefer things), it unchecks "Sync ringtones" on the Ringtones tab, and vice versa. The bad news, of course, is that when it automatically unchecks "Manually manage", it unceremoniously deletes all of my music. Whoops. That explains my music disappearance; two days ago I'd gotten a new ringtone, and rechecked "Sync ringtones" to get it. What I'm wondering is, is this normal, or is there something funny going on? It seems kind of reasonable that it can't sync ringtones but manage music manually, but it's a bit fishy that iTunes doesn't warn you beforehand. Thanks!