Thanks. After I installed the PROSet/Wireless Software for Bluetooth driver I was able to send audio to the Bluetooth speaker.
I have to say that there is nothing intuitive about finding this driver. I searched via both google and
the on-site search on the Intel site for a Centrino Bluetooth driver and found nothing. I also ran the Intel Driver Update Utility and it did not identify this driver as missing from my system. Since the Bluetooth and Wifi are on the same card it would be intuitive to have the Bluetooth drivers bundled with the basic PROSet/Wireless bundle.
I am sorry for that, for manual download I suggest typing the model number (6235 should be enough) here, or narrow by selecting Wireless Networking, Intel® WiFi Products, and finally the model.
For Bluetooth* software we also have this other link: Intel� PROSet/Wireless Software; Intel� PROSet/Wireless Software for Bluetooth� technology
I am glad it is working now.