Inspirion 1525 WLAN wirless card has stopped working. Please Help!

Hello. I hope someone here can help me. I keep getting a pop up window that says Dell wirless WLAN card has stopped working so I cannot work wirless with my laptop anymore. I have a Inspiron 1525 and I was thinking that maybe I need to update a driver or something but I don't know which one to update. Any help would be very much appreciated.