I have just updated my THinkPad T40p using Lenovo's System Update. My wireless was working before this update. Now it won't work. The error reported is that the wireless radio is off. However, if I press Fn+F5 and try to turn on the wireless radio, it will NOT turn on.
The wireless LAN driver for my system was upgraded to 18.104.22.168 as part of the System Updates.
I have the latest Access Connections installed (4.12). Also, all updates reported by System Update have been installed.