Station plays on PC in Windows Media Player but not in yourmuze flash player (static high pitch background)

Hi
some of my station play fine on PC in windows media player, but after adding it to your database in yourmuze they don't play clean in your flash player via listen (high pitch background noise). They don't play clean on my curve 8330 either. Here is the URL:

mms://stream.polskieradio.pl/program1_wma10?SESSION_TO_MATCH=gdb4n772lsvdygdxxq&MATERIAL_IDENTIFIER=mms://stream.polskieradio.pl/program1_wma10&GENRE=entertainment&Quality=high&ENCODING=utf-8

What is the problem, any solution.
Thanks
Andreas

So nobody can help me with this, there is no support from yourmuze??????