I'm keen to see this when it is shown again, can anyone tell me what time 11:00CST is at GMT (London)

5pm gmt (and this text is just being added because my reply was too short and wouldn't let me post it!)

I received an apologetic reply to my webinar feedback (there was a link at the bottom of the webcast page.) Gary Rebholz, Training Manager, wrote that there will be made available an on-demand archive of the Feb. 3 webcast.

Apparently, the problem was related to the web page / http server upon which the player was embedded, not the live encode or stream.