Streaming recording failure

[Sky Diver]

SoundTap starts recording (YouTube audio) but stops after anything from 5 to 20 seconds saying "The audio stream stopped" - but it has not stopped, YouTube continues playing on screen. Sound Tap neither records from this point nor allows me to hear the audio. I have checked Sounds in Control Panel, all is well.

(I recently upgraded AVG anti-virus to version 10.0.1153, any connection?)