hello. my problem is a bit different from the others. so... i've had my macbook for 2 years by now. its airport is always at a good condition and i never had any problems opening wi-fi connections. and yesterday... i was browsing like usual when suddenly my internet stopped connecting. i think it was the problem from the service provider so i didn't really mind. but what's getting irritating is, up until this second i still can't use my wi-fi. BUT STRANGELY, when i use ethernet with the same modem (that modem could be wifi and could be ethernet), the internet is working!! so that means, my macbook pro can't open wireless networks. fyi, i'm typing this with my other laptop AND USING MY MODEM'S WIRELESS NETWORK. so that means my modem is innocent, it's something wrong with my macbook but WHAT????