Roger,
I'm so sorry you cannot play 'my' RA files. I do not know why, but a few number of people have the same problem. As far as I know, Internet Explorer is OK as the problem occurs only with Netscape. It could be due to the browser's configuration rather than to the files themselves. One Mudcatter (Dale Rose) fixed the problem in Netscape playing around with Preferences, but I can't tell how.
Ciao
Ezio in Italy