I've been trying to video conference with a fellow Mac owner through iChat and have not been able to get it to work. The connection times out with "Error -8" and it says that the receiving party did not accept the invite, even though that's not the case. I've messed with QuickTime and iChat preferences, changes port settings, and created an iChat AV profile in the Firewall portion of the Sharing system preference (even though the firewall isn't turned on) and nothing has worked. I am using an AirPort Extreme base station...maybe this has something to do with? If anyone knows how to solve this, some help would be much appreciated!