So this one is a little nuanced. I know bluetooth native to Windows has never been great but this is driving me nuts. I have a bluetooth headset paired to my sp3 (jabra stealth - although I suspect many headsets will act the same) and everything seems fine with exception of the mute function. Windows is setup to use the handsfree profile which should handle this. On my phone, mute works fine obviously - single button press. On the sp3 though, the button does absolutely nothing. As the sp3 is geared towards mobile, it feels like something that should be able to be supported. I don't want to use a bt usb dongle and take up my only usb port. Any ideas?