I've got a weird issue with Outlook 2013 on Windows 8.. I've read several other posts that are kind of similar but they don't really apply.
So, Outlook 2013 uses the "Desktop Mail Notification" sound event.. unless I change the .wav file assigned to that event. Then it instead uses the "New Mail Notification" event. Then when I change the .wav file assigned to THAT one, it changes again to instead use the "Notification" event. Then when I change the .wav file assigned to "Notification," Outlook just won't play anything at all when receiving new mail. It just flat refuses to use anything but the default .wav files.
Has anyone run into this before?