I never had a problem connecting wirelessly thru Airport. A friend tried to hook my computer up thru Blurtooth yesterday to the internet on their phone and now today I cannot connect via Airport. Bluetooth is disabled. Airport is on. i even went into Library-preferences-system and deleted network info. Tried to start fresh with Airport and got nothing... won't even detect wireless networks. I have an older MAC using OSX 10.5 Tiger. Any help is appreciated... I am a newer MAC user.