Thanks John for this one:

AOL has blocked Trillian users, with this message as they are disconnected from AIM:

AOL Instant Messenger: You have been disconnected from the AOL Instant Message Service (SM) for accessing the AOL network using unauthorized software. You can download a FREE, fully featured, and authorized client, here http://www.aol.com/aim/download2.html.

Cerulean Studios (www.trillian.cc) is working on Patch D already.