Can no longer capture audio from BBC iPlayer

[Morph]

I've been using RMC v3.02 to capture audio from the BBC iPlayer with no problems for well over a year now, generally from Radio 4 streams.

That all stopped at the start of this week; now RMC just can't "see" the stream and sits there doing nothing.

Is this linked to the BBC tightening up their Secure RTMP implementation from 18th Feb ? If so, is there an way around it or am I now forever blocked from capturing audio ?

UPDATE: This seems to only be affecting Firefox 3.5.8 and IE8 - RMC still works when using portable versions of Chrome 4 and Opera 10.5.