I'm having issues as well with the bluetooth side of the 6230 card.
I was using a USB bluetooth adapter and it worked perfect with my iPhone to stream music.
With the 6230 once I finally got it to recognize my iPhone, and stream music, it does everything on a 3-5 second delay. Even pause/unpause or volume up/down.
With USB bluetooth there was no delay at all. One difference I noticed with the USB bluetooth was that when a song played it opened a mini-player in the right corner. With the 6230 I could never get this mini-player to appear. All controls had to be done from the iPhone itself.
Anyone know the proper drivers/software to get the bluetooth side of the 6230 chip working seemlessly on the 11z?