To play 5.1 sound you must have an AC3 filter installed, such as Intervideo or AC3Filter, or cyberlink or maybe FFDshow. If you can't modifiy in Intervideo's properties, then it's not installed. So, open the file, rightclick ->options->filters and tell us which filters are specified there. In audio's filter properties you must find the option to play the whole audio on just 2 speakers.
|