[Freeswitch-users] Should conference video options work on version 1.5.5b?

Hi, I am trying to call into a conference using two ekiga phones, with video.  I know that the video presented will only follow the active speaker. I have tried video-bridge and video-floor-only options, but neither seem to work. I can see that they are enabled when I use the conference list command, and I can also see each member has the 'video' property set, but there is no received video. Both members are using H261 codec, which I have enabled in vars.xml. Is there some other option that I need in order for video to work? Thanks, David