If the driver is not correctly installed, then the configuration Tool will not talk to your Beo5.
To manually update or install the Beo5 driver take the following steps:-
Press START >> CONTROL PANEL >> SYSTEM
Now select DEVICE MANAGER under the hardware section
You will see a USB device with a yellow exclamation mark next to it, right click on it
Left Click UPDATE DRIVER and you will go into the driver install wizard. Do not accept the automatic install options, but click the button which allows you to select the location of the driver which is located at:-
C:\Bang & Olufsen\Beo5 Configuration Tool\Beo5Driver
It will be looking for a configuration file called Beo5Usb.inf