I have searched the forum for topics about YouTube video in JW Player. I found a lot of them and tried every suggestion.
Bottom line is, when I use the setup wizard and add a YouTube video, it works perfectly in the preview. (javascript and embed)
It does not work locally (IIS), nor on my Web server (IIS). The movie won't start or I get an error message # 2086.
JW player works fine with every other flv file on my computer and web server as well.
I was wondering, does YouTube require a different MIME type?
It must be a server issue. Anyone knows the solution?

Do you have the YouTube proxy (yt.swf) in the same directory as the Flash movie (player.swf) on both of your servers?