ogg chapter support not working
 

Bsplayer claims to support OGG chapter, AFAIK, but whenever I try to proceed in movie chapterwise, it doesn't jump at all but showing the selected chapter name in the OSD.
No difference if I use chapter viewer as a starting point or through the menu or via key shortcuts.
Any faults from my side? I created bsi file withchapter info as well included chapter info in ogm file when muxing - even if no info in ogm, no change -
seeking manually with "progress bar" works.

WinXP, bsplayer490, latest ffdshow, latest OGGDSF, XVid video wrapped in OGM

Any different experiences? Solutions?