Ok I know the answer to that one. The local copy works because MTS installation associated the MTS file type with the player code. The server has to do something similar to ensure that the right HTTP "Content-type: " string appears in the response header. I think it's "application/x-metastream" or something like that. Without the header, or worse, with the wrong one, the browser gets confused. If your ISP doesn't respond when you ask them to add the MIME-type to their WWW server, try someone else. It's no big deal for them to do this for you. P.S. MetaStream 3 is much more complex and designed for big commercial sites. Think of 2 as MetaStream Lite, and compare them like Carrara and Maya or 3DS MAX