I've been developing a fairly simple presentation in CS4, AS3, OSX, which runs as a standalone projector.

Everything was working for a while, but now for no apparent reason, any file I publish as a projector starts the Flash Player app, but the projector does not appear or play.

Older versions that I had already published will play correctly, but if I re-publish them they do not work any more.

I have deleted my preferences, uninstalled and reinstalled Flash, but still have the same problem.

Any ideas are desperately needed and appreciated!