Well, this is really frustrating. The first time I install Windows 8, it perfectly detected the WiFi card, and I could it freely. But the second time, the WiFi switch in the PC Settings (Metro UI) is grayed out (I remembered I put Airplane Mode on back then), with no way to switch it on again. I tried the latest drivers, checked UEFI, and even tried the Power Management the Power Manager for Win7 (which some folks said it was the cure), and still no result. Anyone can help me?