My friend has a Dell Inspirion 6400 laptop with bluetooth inbuilt but it won't work. When it is switched on using the fn+F2 keys the indicator light comes on but clicking new connection on the bluetooth icon in the taskbar just brings up the message "Bluetooth is not ready." with only an ok option. He says it used to work but stopped about 4 months ago. I don't currently have access to the laptop because I'm no longer at his house but in the meantime, any ideas?