I have a macbook core duo, my airport is glitched, in the tray the icon is gray showing that its off, when i click on it it gives me the option to turn airport on, when i do; nothing happens, the air port stays "off". Yet the airport is working and on but stuck "off" i cant choose the ap i want, in the networks prefs panel it says im connected to my ap "linksys" but i cant change the ap. Also when im in the network panel, under the airport tab, everything is grayed out, except the option to show the airport icon in the tray(checked).