I have the server running in Ubuntu Jaunty using the following procedure: 1) I compiled ffmpeg and x286 using these instructions 2) Did a "sudo apt-get install ruby1.8 ruby rubygems libsqlite3-ruby libopenssl-ruby". I excluded VLC (I already have VLC 1.0 installed) and ffmpeg (already compiled in step 1). 3) I already had the Medibuntu repositories active, but "sudo apt-get install libavcodec-unstripped-51 libavdevice-unstripped-52 libavformat-unstripped-52 libavutil-unstripped-49 libpostproc-unstripped-51 libswscale-unstripped-0" failed because the packages couldn't be found, so I skipped it. 4) I installed Knots2 from GIT. 5) I ran the setup (http://localhost:1978) and added mp4 to the scanned video extensions and wma to the scanned audio extensions, added my scanned directories, and updated the collection. 6) I installed and ran the Knots client on my N800. It worked the first time. The volume was very low when playing via the Knots client, even with the system volume at 100%. I eventually tried setting the mplayer volume at 100%, which fixed the problem. Is the client using mplayer? There's no video, only sound, when playing wva files in the client. They work sometimes from the browser. All other video and audio file types I tried play perfectly.