My brother has a G3 400 MHz Pismo. I have a 12 inch G4 DVI powerbook. For the first time last night we both used iChat to communicate with each other. We had no problem with the text chatting part. However, when we tried the audio chat, we would get "insufficent bandwidth" error message. His connection is Comcast. I am piggy-backing our friend's DSL across the street. I have had no problem communicating with our other friend who lives 50 miles away. So the problem is not on my end. What is causing on my brother's? TiA