Yes it does looking again - never even noticed it
Have updated QT also - no change.
On the server side you used to be able to only control these plugins properly from the server side - embed Javascript into the the actual web page with the required parameters if possible - sizes, aspect etc - should be info on the web.
Or - could try getting the file down in another format so it doesnt need to use Quicktime - because changing file associations, or disabling the plugin on the client side is not forcing either of my browsers to use the media player plug in - I could delve deeper but migth not be ideal for others tbh.
Is it encoded in H264 - might be able to try silverlight if it has.