Found an issue on Adium, I am on the latest version as of this post, the way to replicate it is:
1. Get someone to send you a message on Adium
2. Don't read the message but go to quit Adium
3. It will popup with a window are you sure you want to quit, you have unread messages etc
4. Click either quit or cancel
5. Adium will crash
I am using just msn account on Adium.