I've never had trouble using iChat and in fact I was just using it for a video as well as a text chat today. I restarted my computer and since then have been having lots of issues. Every time iChat tries to start up, it says: Disconnected from iChat Agent The iChat Agent process has unexpectedly quit, disconnecting you from all services. Logging in again will restart it. Of course, every time I try to re=login or restart, it yields the same result. Can anyone help??