So I found a good deal on a month old macbook pro 15" on craigslist for 900. Bought it last week and the airport card went out already. They had the part in stock at the genious bar here at Vintage fair mall in modesto. Has anyone else had this problem in a new macbook? They said the turnaround time was 3-5 days. Just was curious to see if this is a rare problem or a big issue?