It would be great if the people posting screen shots and instructions (d&c), could also add those to the compositor wiki article - so that we can grow a single "go to" resource over time, without having to tell people "search the forum". In addition, that would make it easier to also reuse such artwork/text elsewhere, e.g. in the newsletter/changelog.
Also, maybe the about dialog should be updated to display some kind of "compositor mode" property (available vs. on/off) ?
That way, end users would be more easily able to tell if they have the correct binary and if the compositor is enabled or not.