Hi there,
if I'm not altogether wrong this isn't a problem of bsplayer but a general codec problem. DIVX 5 and above automatically sets its priority to play all divx content.
You can check quite easy which codec is used for playback by rightclicking the video window, selecting properties and then "divx deocoder" or something alike. If the window showing is the fancy looking DIVX 5.x window, the file is not played with the 3.11 codec. Another way to find out which codec (or more correctly direct show filter) is used is gspot. (just google for gspot)
Now, to come to the point, there is a workaround for the problem. Go
here and
here and then dl the divx fix
here.
Hope I could help,
squee