Originally Posted By: andy
- pairing a Sony phone with a Sony laptop running Sony's own BT stack on WinXP

Sony have their own stack? All the VAIOs I've used which have had Bluetooth came with a third party one like Widcomm or Toshiba. None of them used the built in Windows one for some reason. When I installed W7 on my VAIO, I changed it to use the built in Windows one and its been fine.