Syncing ringtones to Iphone4 without erasing it?
I have been trying to sync a custom ringtone (m4r) on my Iphone4, but Itunes keeps telling me "My Iphone is synced with another Itunes Library." and that it will erase my iphone and the itunes library.
My Iphone only has Apps on it. I already have the Apps automatically synced. I don't have Music or Videos on my Iphone4 since I have those synced automatically only to my Ipod. I have the Ringtone file already placed in my Itunes library under TONES. I tried dragging it into my Iphone4 Tones and it won't let me. If I try to check "Sync Tones" and apply, the message about erasing my Iphone comes up every time.
I honestly don't know what to do. I only use one computer & one itunes so I don't know why the message about my Itunes library pops up. My question is should I just sync the Tones even though it says it will erase? I mean what would the syncing erase when I only have apps on the Iphone?
Help is greatly appreciated.
iPhone 4, Windows Vista