Divx converter7 problem

Hi guyz,
I am new here. Just joined in today. I am actually having a problem when converting my.mkv files to divx using divx converter 7. The thing is that after converting the file when i play it on my home theatre i get the dialouge sound from only the centre speaker. i know that is known as 5.1 surround soud but i personally dont prefer that.:iagree: Could you guyz tell me what settings to use so that i hear the dialogues from all my 4 speakers that means stereo and not 5.1 sound.