I am using mediatomb on linux Mint11 and media streamer on nokia n810.  When i try to add a folder of music to the playlist I get "unable to find media".  It only happens with some folders, not all.  all music files are ogg.  i checked the music folder where all music is kept and all the folders do exist.  i don't remember this happening before.  Just upgraded to mint 11 last week and got mediatomb installed yesterday from the ubuntu repos.