Hi all, I'm a new Apple computer user (longtime device user) and cannot ID a couple sounds coming from my MBA. They happen at times where no use is occurring. I may be on Safari reading online, but not clicking, scrolling or downloading anything - then a sound happens. It's always the same sound, as if something is being sent, like an e-mail, text or something. Anyway, I review the sounds in the Sound menu's of System Preferences, but none of them are the right sound. How can I ID the sound and identify why it's happening? There is another sound as well I cannot ID, but it happened only once.