Windows 7: Bluetooth headset problem...

I have a problem with my Plantronics 360 bluetooth headset device. When I used windows XP, the headset could normaly connect to my MSI EX 610X Laptop with build-in bluetooth device. Now, I'm using Windows 7 x64. The headset also normaly connects to the laptop, but the sound that comes from the microphone in headset is awful, just "zzzzzzzzzzzzzzzzzzzzzz" as I speak. And the sound in speaker (of plantronics) is also just "zzzzzzzzzzzzzzzzz"... What should I do ? Pleae, help me ! I hope you understanded me

Anyone ??? :'(

All i can suggest which might work, control panel, sound,disable plantronics from the recording tab, see if that makes a difference when you reconnect the head set?This means you can't talk to any one but can listen to music without "zzzzzz". I have the same issue with HT820 Motorola & belkin F8T013 dongle. Haven't found a solution yet...

Have you updated the bluetooth stack? I had problems with my bluetooth till I used the update from here: Broadcom.com - Bluetooth Software Download

This worked for me amd I am using the same headset.

After 2 weeks, I got the bluetooth stack installed in WINDOWS 7. For about $15, I bought a Cirago Bluetooth USB adapter, (BTA-3210 V2.1)

It came with a disk that had the bluetooth stack software, (Toshiba software)
I had found this bluetooth stack software on the internet, directly from Toshiba, but was reluctant installing it. It would have been valid for only thirty days.

I'm now completely interfaced with my Motorola DC800 Tx/Rx device.
I now have the house radiated with Bluetooth!

I'm happy. (I never give up)

I connected my Bluetooth headset to my windows 7 computer via Bluetooth dongle for Skype. The audio is perfect but the Mic for some reason is muffling my voice (like I'm too close). The Bluetooth device works perfectly and clearly on my cell phone. Does anyone know the problem??