I have 2 USB Bluetooth dongles that show up in Device Manager as "CSR Bluetooth Chip" by Realtek. They both report that they are functioning properly. But when I go to try to add a a set of Bluetooth headphones, they are never detected. This is on 2 different computers (although running very similar software) running Windows 7 Professional. If I go to a 3rd computer that came with a Bluetooth radio built-in, the headphones show up right away when going to add it. On the 2 computers that I've tried the 2 dongles on, the "Add a Bluetooth device" option isn't showing at all. Also, there is no "Radio Information" for either of the dongles. The fields are blank.