Hello everyone. I have an iBook G4 which has been really great until this week when the airport stopped working consistently. Every time I restart the computer or power down, I don't get a signal unless I turn the internal airport card on and off. Then it allows me to load one page and I have to do it again. I've used network diagnostics and restarted airport and my modem but that hasn't helped. After awhile of fiddling with it, it'll work properly again--but it happens every time I restart! Can anyone help with this??