I would like to disable the Gnome 3 notifications/pop-ups/integrated notifications (if that's even the right term for them). For example, they're the notifications that appear when your receive an IM via Empathy, or when Rhythmbox begins playing a new track.
I have downloaded the Gnome 3 Tweak Tool, but cannot find a solution in there. I have searched Google, the Gnome website, and the local help (via F1) but cannot find a way to turn these off. I would welcome either a solution here or a link to instructions.
I have also looked through all the hidden files in my home directory, and in /usr/share directories, and run quite a few find commands grepping (case-insensitive) for "Notification" and all sorts of substrings thereof.
I tried this http://www.youtube.com/watch?v=HvNm3BnymAE but that did not stop the notifications from occurring.
Info:
Fedora 15 2.6.40.6-0.fc15.i686 GDM 3.0.4