you need .net framework 1.1 and hotfix to make async works with WM5 over bt
or install Broadcom bt stack

bt A2DP addon for X50/X30 is here (WM2003 only)
http://h20000.www2.hp.com/bizsupport..._I22475-107080
HOT!!!bt A2DP addon for X51 (WM5) is here
http://www.aximsite.com/boards/showthread.php?t=125956
HOT!!! apply reinforcement to your fragile logitech wireless headphones
http://www.aximsite.com/boards/showp...07&postcount=6
HOT!!!add native Trad Chinese support to your WM5/6 device
http://www.studiokuma.com/wm/?section=support