7.1 cinema sound from WinDVD but not from MediaPortal (1 Viewer)

[Rastaman]

When I play a DVD trough WinDVD I get full sourround sound but when I play it from within MediaPortal I get sound from all of my speakers but the sound picture is not what it should be. I have sound in every speaker but the balance between the different channels is not correct.
I guess it has to do with codecs but even if I configure MediaPortal to use the WinDVD audio codec I cant get the right sound.
Below U can see what I have to choose from. The line marked with a * is the one I have selected. Have any other suggestions???

Audio renderers:
SB Audigy 4 [1080] *
Default DirectSound Device
Default WaveOut Device
DirectSound: SB Audigy 4 [1080]

Audio codecs:
ffdshow Audio Decoder
DScaler Audio Decoder
InterVideo Audio Decoder *
Nero Digital Audio Decoder
CyberLink MPEG Muxer
MPEG/AC3/DTS/LPCM Audio Decoder

 

[petteram]

Same here. I only get right sound using Purevideo.
With all other codecs I get no surround.
Have tested with all codecs and renderers.