In the tools > Options I lost the bluetooth option after upgrading to 4.0. Any ideas what happened? It seems that other application were lost as well as my icon list is a bit shorter as well. Anyone else experience this? The bluetooth option was there before.

You need to go into Settings -> Options -> Bluetooth then click the track wheel and select "Enable Bluetooth"

Bluetooth gets taken out of the Settings menu when you upgrade. Once you turn it on and connect to a headset, it should re-appear.

I think he is saying the Bluetooth option does not show up.