Airbook with BT headset - MacOS ok, XP no

I have an issue with Bluetooth. Connecting a Nokia BH 900 headset via Bluetooth to the Airbook under MacOS works fine, but when I try and connect under WIndows XP (bootcamp dualboot) it does not find teh device or any devices for that matter.

Also I need to connect an A2DP protokol for a Plantronics headset. How do I do that. This does not seem to work even under the MacOS.

Thanks for any tips.

Regards