Every time I sync new music to my smartphone, all of my ringtones get reset. The MP3 files, themselves, aren’t being changed at all; just a few new ones added. But, updating the main playlist which the music sync program does whenever it uploads new music, somehow makes my phone forget the location of all of the customized ringtones. Very annoying; especially since all of my frequent contacts have the personalized ringtones. I really wonder who thinks that’s even a remotely acceptable design.