Welcome to Live Mass
No picture? Hover your mouse over the video window and if a triangular Play symbol appears, click on it. If that doesn't work, refresh your browser window
No sound? you may need to un-mute the video's sound - hover your mouse pointer over the bottom of the video window to see the controls:
Then click on the crossed-out speaker symbol (arrowed above) to uncross it. You should now have sound.
Lots of buffering? Close all other applications and all other browser tabs. We find that often works