We have two laptops in our place and the ibook has no trouble connecting to the airport express but the powerbook just recently started having trouble after the ibook was brought into the picture. And now the powerbook is starting to have trouble connecting at work too. Is this just a bad Airport card and if so has anyone replaced theirs themselves with any success? My apple care has run out already so I am trying to solve this as inexpensively as possible. Thanks for any helpful comments and tips.