boxee box and subtitles

Hi.

Just arrived to this forum. I have a annoying problem.
I bought a boxee box, and i have all my movies and shows etc on my readynas duo.

But when i watch a movie or a show, my subtitles wont show. When searching for the sub, the folder is empty. I have renamed my subs to they match the file, and placed them in the same folder.
I thought it was the boxee box, so i returned it and got a new.
Then i tried the boxee media manager, to stream files from my pc´s harddrive. The subs appear. Then i tried the boxee media manager, to stream from my readynas. No subtitles.
Ok.
Then i copied the file, plus subtitle, to an usb flash, and direct in the boxee. The subs appear. So it´s only when i stream from the readynas. I can stream the movie fine, but i cant get the sub to appear.

So my question is:

Does anybody with an readynas duo, AND a boxee box have the same problem??
Cant get any answer on the boxee box forum.

My setup is:
Wireless router plus pc upstairs.
Boxee box just below downstairs.

Hope for an answer, and it´s just an option to click to make this work.

thanks
Daniel