I have a few problems with my Macbook Air's AirPort. Firstly, it doesn't connect to my router anymore and when at bootcamp, it is also unable to detect my router (but able to detect when turned on). Is it because of the machine is bought in the US but my router is a Singapore set (where I live)? Oh and one more thing, I just upgraded it to Snow Leopard and ever since the "Install OS X" icon on my desktop never goes away whenever I reboot it after deleting it.