BB Tour 9630 :: Unwanted Ringtone Plays After Normal Ringtone Finishes

This is an unusual situation. I have this ringtone that is a song about a cartoon character. Some kids texted it to me and I saved it in my ringtones folder. Later I tried to text it to a couple family members. On one of the attempts, it didn't attach because I hit the wrong selection (not sure what).Anyway, ever since, the song comes on constantly and plays all the way through. For example, if I receive a text, the normal text alert sound goes off. But afterwards, the song starts to play and I can't stop it until it has played through. If I receive an instant message from someone on Blackberry Messenger, the normal message alert sound goes off, but afterwards the song starts and again plays all the way through.If I make a call, after I hang up the song goes off and plays all the way through. If I send an email, as soon as I hit send button, the song goes off and plays all the way through. Nothing I have tried seems to work.I have checked all my ringtone and contact settings. I have deleted the ringtone/song from my ringtone file and deleted the few messages and emails on phone where I forwarded it to myself or a family member. Putting the phone on silent doesn't seem to work. Once the song starts, I cannot stop it until it plays all 30 seconds. Anyway, I still have the same problem and the song will not quit playing. So, I think you can see my dilemma. Anyone have suggestions on how to fix this problem? I thought maybe it had a virus, but no one that I know who has the ringtone has the same problem as me. I did recently install a new update/upgrade of the Blackberry operating system. Do you think it is a problem with the update?