After months of frustration, Yahoo technical and I figured out how to video conference using:- Mac OS X 10.4.10 (Tiger)
- iChat (3.1.8)
- our AOL Instant Messenger (AIM) Account
the fix that worked for us
- Open iChat preferences and click on the Accounts tab
- Select your AIM account
- Click on Server settings
- Change the default port (5190) to Port: 1080 (at the top - no need for a proxy server)
- Restart iChat
Yes, we have Apple's firewall on, and a Netgear router firewall in action.

