913 Views 1 Reply Latest reply: Jan 21, 2009 8:09 PM by roaminggnome
Iphone syncs itunes content to ONE library/computer at a time. You should transfer your itunes library from your old computer to your new computer, then sync. That is probably where your ringtones went.
As for the new music, I'm not sure. Maybe this will help:
You can also try a reset. This is covered on page 34 of the manual: