iChat Bonjour problems

I was testing out bonjour with my girlfriend, and we noticed something odd... When we use our bonjour accounts, i see her as "girlfriendsname@girlfriendsnames-macbook", and she sees mine in the same fashion. Sometimes, I can quit iChat, and reopen it and that fixes it on her end... sometimes. What could be the deal?

Ok, seems as though a permissions repair fixed the issue.