iChat cannot connect to AIM/Jabber when updated to 10.7.2

Hello all-

I upgraded to Lion 10.7.2 yesterday and immediately iChat cannot connect to AIM or Jabber (yet, curiously, it WILL connect to googlechat). I tried changing the port (when I checked the preferences, it was already on SSL port 443. I tried changing it to 5190 to see if that would do anything, but it didn't). I also tried deleting the plist file in Library/Preferences but there was no plist file present for ichat (which is weird????). I also doublechecked that the password in Keychain was showing up as the same in iChat (and it is).

I have 2 other friends who are having similar problems, one of whom I know is also unable to connect to Jabber/AIM. I can still login in to AIM on the website and when I use Adium instead (though I would like to use iChat so I can video chat with friends). It's annoying 😟 Anyone have any suggestions? Could this possibly be AIM/Jabber unprepared for the update and now there's a communication problem? Seems a little odd that I know two other people who immediately have had the same problem as me.

Thanks!