DVD Audio not working, can anyone help!

Anyone had any problems with WinDVD 5 not playing audio through all 5 channels when using a a creative audigy 2 soundcard with a 5.1 channel speaker system with dts and dolby digital pro logic 2 decoding? as mine wont play the audio through it and windows media player wont allow me to play region 1 dvds even if im using dvd region free CCSS. Can anyone help?

If you still need help with this, let me know. I think I have some answers for you.