Try going to Prefrences->Mouse Prefrences->Touchpad . Is "Enable mouse clicks with touchpad" checked. If not check it and see what happens. This is a bug as it is not on by default.
Try going to Prefrences->Mouse Prefrences- >Touchpad . Is "Enable mouse clicks with touchpad" checked. If not check it and see what happens. This is a bug as it is not on by default.