I have a MacBook Pro from 2009. The airport has abruptly stopped finding any networks. I have had problems in the last few months (just after I moved to the states from Canada). My roommates' laptops could pick up the network, and mine kept dropping out. I went home for the holidays, and it worked fine (despite the router being even further from my computer). when i returned, i had a few days of very spotty internet (much higher number of drop outs) and now it won't detect a single network. My warranty is up so i'm nervous that this is something internal they have to replace, but I"m hoping there is some way for me to check. I just tried to connect at work, and it detects nothing here too. so it is NOT interference. sidenote: My graphics card is malfunctioning (which is under extended warranty for this model), and I am taking that to get replaced today... is there any crazy conceivable way that the two issues could be connected??? bottom line: what can I do now to rule out (or in) the possibility of hardware malfunction causing my airport to stop detecting networks?