Hi, i bought a n5050 with ubuntu preinstalled so i installed windows7 but i cant find the wlan driver.

The card is Atheros AR9485 but i cant find it anywhere in dell's driver list or anywhere else. I used google, found some links but everything i downloaded didnt work. I even found a post to a forum saying that this card is faulty and that guy bought another model from ebay to have it solved.

Anyone got any idea?