I keep getting this same message every time I check the box to sync my new ringtones. The first time I (successfully) added ringtones, all my music was deleted in the process just as the message warns. I manually manage my songs, so I'm not sure where to go from here.
I feel like there's a blatantly clear answer out there, and I'm just too dense to figure it out. Help for a newbie?

I feel like there's a blatantly clear answer out there, and I'm just too dense to figure it out. Help for a newbie?