Ok so i have this lenovo T400 thinkpad, i have win 7 on it but for some reason there are no network adapters, i installed every driver that was on lenovos site for Ethernet and wifi but it still says "no supported wireless adapters (802.11. WAN or Bluetooth) are installed in system." and when i plug in Ethernet cabel nothing happens. So if anyone knows what could be the problem please help...