I have the same problem. I hadn’t upgraded AIM at all when the problem first started, then I upgraded to the latest version and it has continued. The most recent change to my computer is the install of battlefield 2, but i don’t think a game like that could screw with AIM but it is posible.
Downloading the beta now to see if that fixes it
*edit*
The beta has seemed to fix my problems with the crashing. I’ll use this for a little bit to see if i like it, but so far it is a little too cluttered with the whole voice video games files tabs thing