There's a new beta of Adium that is supposed to fix the disconnection problem, but i can't tell whether it's not fixed or AIM was just freaking out yesterday.
Additionally, i had a little bit where i was talking to darkeyedwolf but none of my IMs were going through even though i was flagrantly connected and getting hers. So if i suddenly stop talking to you, give me a heads up? i might actually BE talking to you.
I'm going to keep plugging away with the new version for a little bit, cause it fixes my file transer and group chat stuff, but being connected is obviously of prime importance here.