Solution 1:
Download from a specialized site a subtitle in your language. See BSPeter's
Help for help post concerning subtitles sites.
http://forum.bsplayer.org/viewtopic.php?t=2607
Solution 2:
Chek if you don't have 2 audio streams on the file. YOu mai have the right one too. Rightclick->audio->audio streams->stream 3 or 4 or 5
Solution 3:
Download another copy of the file from internet. :D YOu may end up with the one you want.