I'm new to this forum but can't find the subject I'm looking for. My problem is I find files I compose on the current version of NWC don't seem to be able to be played on the latest version of "viewer". People get the message that the file I've sent has been "composed on a newer version of NWC". I am also unable to find anyway to ask questions of the makers of NWC. Can anyone point me in the right direction on either or both of these issues? Thanks Jeff