MrBond, are you saying that you just changed the connect port right in the AIM setup? Or were you using a proxy server?
Once again, this is ammo for my own
BitWise, which always uses direct connect and doesn't have these goofy problems... not to mention it can send offline messages if for some reason your buddy can't be reached, and, if your message completely falls through, it'll tell you that the other person didn't get it.
Sorry, I had to put in that plug.

It was just too easy.