Amarok: fade effect doesn't work with. wma

Hi, I have a problem with amarok about the fade out effect, It doesn’t work with wma format. The version of Amarok is 2.1.1 on openSuse 11.2
Can you help me please?

We’re not amarok developers and obviously there’s something inside amarok itself that doesn’t work like it should… better ask on the amarok forum

ok…thank you for the answer…