Hello, After initially installing win 7, and taking a few stabs at the correct driver for the wireless card in my mac pro (apple installed), i got wifi working with a public network. HOWEVER, i installed windows updates, restarted, and now it's just not working again! it says that there is not a valid ip address... my macs get on fine... how to diagnose and fix? the win 7 dianostics do nothing. thanks, r.