Mark: It doesn't do transparency mapping yet, which I suppose your hair is using. You'll either have to stick to "plastic hair" using no transparency mapping or use Poser 5's dynamic hair, for which basic support is included as mentioned in the readme file. That's one of the reasons why I am not considering a full-featured release yet, hence the name "preview release 1". While it's nowhere near being a replacement for production quality renders in FireFly, I thought it could be useful for quick background animation previews already. Of course, getting a better quality out of my epxorts is something I am pursuing.