XBMC and uPNP shared library. No srt subs?

I just tried uPNP today. Different machines. OpenELEC 2.0, Frodo beta1 on Android and Frodo beta1 on windows7. Worked great, except "watched" and starting points and all that. But also the sub files I had in the same folder as the mkv that works on the server, they didn't work ok the client.

Should they work? Can I make it work?

/Söder