I bought a Linksys DBT-120 from a guy and he gave it to me without the cd or Widcomm security code, but I got a new Widcomm security code from thier website and now that I have the software installed but when I right click on the bluetooth button on the  bar at the bottom right of the screen and click on "Start Using Bluetooth" it says "Your Bluetooth software licence does not support use with device" and then it pops up a browser window wanting a "licence.dat" file and I don't have one because I don't have the cd, then it says "Bluetooth software licence not found". how and where do i get a "licence.dat" file?