I currently run a power mac dual G4 with iChat AV on an airport network that is connected to a windows server. For some reason I cannot get the video function to work through this server. The chat function works just fine, it's only the video and the audio that does not work. To test to see if it was my computer, i moved it to a different network (on campus) and the video worked just fine. Why is it that the video and audio does not work through my windows network!?!?