I heard a sound from my computer like a new Gtalk im was coming in, but I was logged into Gmail…huh? Apparently there is now audio notifications when you get a new IM ….thru the web. It uses Flash to accomplish this. I can’t figure out if I like it or not yet, but you can turn it off under the options.
Log in to your Gmail account.
Click Settings at the top of any Gmail page.
Open the Chat tab.
In the Sounds section, select Disable.
Click Save Changes.