This started over the weekend and I can't think of anything I changed. The sound was set to a certain tone and it started playing a different tone. It's almost like i have the phone connected to the computer and the default ringtones play. When I go to Settings, sound, notifications and set my sound, it still has some other sound coming through when I receive an email. I've also tried going to Settings, Personalize, Sound and it's listed correctly in there, but still plays the other sound. I've tried creating a new Sound Set...still no change. Any ideas?