SPDIF USING WINDVD pro 11 CHANGE AUDIO TRACK

[Booleano12]

Hello to everybody:

Thanks in advance to all of you for your support ,please i would like to know that how can i change audio tracks of my mkv video using SPDIF connection.
For example:

My mkv video have 2 tracks:
One of them ,the first audio track which is english 5.1 dts surround, i want to change it to spanish 5.1 dd, when i try to change it to spanish
my logitech thx 5500 doesnt works, i cant change audio track, only listen for the first one who starts when i play the mkv video...how can i resolve it??
thanks all the people for your help

[Booleano12]

No one can help me please????