I'm relatively new to the world of iOS, so be gentle. I have had an iPhone 5 for about two weeks and am really enjoying it aside from a few odd bugs, one of which is driving me crazy. I have my Gmail account set up through Exchange on the phone and cannot for the life of me discern how to edit the alert tone. In both the Notifications menu (Settings -> Notifications -> Mail -> New Mail Sound) and the Sounds menu (Settings -> Sounds -> New Mail) I have the same custom tone applied. This sound is, however, totally ignored in favor of the default ding. I can successfully apply this same tone to text messages, my ringtone or voicemail. I do not have any other email accounts or email apps installed. What am I missing?