Hi, i've got a problem with video chatting ever since upgrading to Leopard. When I try to video chat with someone, I get a connection error saying that I didn't get a response from them. I have to restart the computer to get it to work. And this happens every time I want to video chat with someone. If the computer has been on for over half an hour or something, this error will come up and I'll have to restart to get video chatting or audio chatting to work. It's really annoying. Has anyone else had this problem?