subtitles with mkv : BSP=> KO. mpc, wmp9=> OK ???

[Pnar]

Hi,

I've got some problems with subtitles and mkv format :
-> with mpc AND wmp9, I can choose subtitles (with directvobsub)
-> playing the mkv file with BSPlayer, directvobsub also auto-loads, but it doesn't find any subtitle and I can't read them (the list box is empty)

In BSPlayer, I've tried overlay1, 2, vmr9, enabling/disabling BS subs, ogg subs.same behavior. furthermore, the subtitles mechanism in BSPlayer also fails to load the subs in mkv ... (he doesn't find them)

Does anyone have a clue to read these subs?
which filter is needed? specific mode? force a DS filter? ...?

Maybe, it is known that some type of subs are not readable in mkv with BSPlayer ...

thx
Pnar
ps : BSPlayer1.00 build 803