internet explorer will not play h264 stream but chrome will

[tonj]

I'm running the following command to transcode rtsp to h264:

cvlc rtsp://<ip-cam> --sout #transcode{vcodec=h264,vb=150,acodec=mpga,ab=50,mono,channels=1}:standard{mux=ts,dst=0.0.0.0::8084/stream.av,access=http}'

I've embedded the output (stream.av) in a web page here:
http://www.digiwatch.co.uk/test/h264-vl ... v-WAN.html
username = test, password = test
the stream plays fine in google chrome but not in IE, I get a blank white square. I originally thought my html coding must be wrong but having enquired in html forums I've been told Ito check back here and verify if the command I'm using is wrong in some way for streaming in IE. Is it wrong? Thanks for any advice.