I have an X200 Tablet--brand new. The wireless however, keeps turning itself off. I keep having to press fn -> f5 and turn it back on. I thought it might be turning off due to a power setting so set 'Wireless adapter settings, power saving mode' to 'maximum performance' in lenovo's power manager. I also have unticked 'allow the computer to turn off this device to save power' in the wireless adapters properties -> config. Neither of these have helped, does anyone have an suggestions?