This seems like it should have a simple solution, but I haven't found it yet. I am running Outlook 2007 on Windows 8. I have my send/receive settings set to check for email every three minutes. I have unchecked the box "Play a sound" under "When New Items Arrive." I am still getting a sound when the send/receive task is done. Is there someplace else to check for a sound setting? I didn't care before since I used to have the volume set to zero, but with my new Bluetooth earpiece, I would like to listen to my audiobooks without hearing the notification every three minutes.