After watching the Google I/O keynote the other day, I re-enable Google Talk on my Galaxy S3 (USA, AT&T, 4.1.1) and allowed the update for Hangouts. The problem is that I'm unable to receive notifications of any kind (sound, vibration, notifications shade) when I get a new message. I triple checked to make sure notifications are allowed in the individual conversations, in the app in general, and in Google+. If the screen is on, I see the message come up, but get no sound or vibrations. If the screen is off, I still get no sound or vibration. I went through the list of bloatware that I disabled when I got my phone, but the only Google products are Flipboard and Books. I've not been able to find anything about anyone else having this problem online so I assume this is the result of my own mucking around with settings, but I'm at a loss. Without notifications, the app becomes pretty useless. I'd greatly appreciate any and all help!