hi! just got hp ipaq 612c operating wm6.0 english version a month ago, everything
was fine and perfect, but only the below problem i found so far.

Is anyone encounter 'hising' sound or a bit of distortion noise when connect
a bluetooth stereo headset playing mp3? but when using a wired usb stereo headset
there's no problem.
Should anyone can assist me or have solution to this problem?
anyway, can i up grade my wm6.0 to wm6.1?
thank you very much