How do I change the alert tone for the FaceBook application? It seems to have mysteriously changed somehow to a rather annoying dinging noise that dings 3 times if you do not push any buttons. Not seeing anywhere in Ring Tones/Alerts profile to change this nor anything in the settings for the FaceBook app to change this either. There must be a way though if it was once a different noise then it is now. Any help would be appreciated Thanks guys.