What format are the files WAV or MP3? MP3 should be fine. If not when add a ringtone from my computer through a USB, and it's in your Media Center - Sounds area, and you try to choose the option "Apply As Ringtone", if it doesn't apply it, then send yourself a multimedia text message. Just Click the options button for the song you want, then click on "Send in Message" and it imbeds it as a multi-media message. Then send it to yourself. If it doesn't send to you, or you don't want to wait that long to transfer it, or don't have a media text message option, then look in your Outbox at the message you just send, play it, then click on Options - Store. And you can store it. And then just delete the old one. It should be in there.
