This seems odd and maybe i am missing something...I got an IO Gear Bluetooth adapter which uses the Widcomm 1.4.2.10 drivers. After installing the adapter per instructions in Windows XP post SP1, it didn't work. Figuring it was a conflict of some kind, I unplugged everything USB, except the blue tooth adapter and still nothing. Then i decided to uninstall my sound card and reinstalled the the Widcomm drivers and wouldn't you know...it worked. Now when i try to put the sound card back into the system after installing the drivers, i get a "cant start bluetooth stack" error and a "can't start bttray.exe" error. Also My Bluetooth Places won't open.
Is there something special about a sound card and maybe the com or serial port that it works off of that interferes with the bluetooth stack? I tried a Creative Audigy card and a turtle beach Santa Cruz and the same thing happens.
I can't find anyone else that has this problem and I'm stumped.