Hello, I have a 2006 MacBook Pro and had upgraded into Snow Leopard. I used to be able to join my wireless internet, but after the upgrade I cannot seem to click on the "JOIN" button as it is in grey/unclickable. I tried going to my laptop's network assistant, but still wouldn't recognize the password. Have not changed the password as it's still the same. Anybody care to help please??? Thank you in advance!