Vista - Microsoft Bluetooth dongle that comes with Microsoft Wireless Laser Mouse

I just bought a Microsoft Wireless Laser 8000 mouse and it works great in
Vista but I cannot use the Bluetooth dongle to connect to other Bluetooth
devices such as my mobile phone.

When I run the Connection Wizard it completes with message:

"Your transceiver provides complete support for your mouse, but it will not
connect to other bluetooth devices, such as a PDA or printer"

The information in the help to "How do I connect other Bluetooth devices to
this transceiver" does not help me get it working. I had a previous
Bluetooth dongle in my machine and I removed it and uninstalled the Widcomm
drivers etc. I don't have any idea why its not working.

Anyone got any ideas please?

Many thanks for your help!