only FLV audio play non-locally

I'm calling a remote FLV file from a remote server using NetConnection and NetStream Classes on AS3..
The remote server has the crossdomain files setted on all allowed..
When playing locally my swf file display the video correctly..
When playing online only the audio is showed from the FLV..

Someone know the reason why, and a possible solution?

Thank You in advance for your help..

Here is the example code: