Thanks for your quick reply, and for your comment :) However, I'd already found the 'render on network' thingy (maybe I should have been clearer? anyway...) I'm pretty sure in earlier Bryce you could render to network, but also get the copy of Bryce you were using to render a bit as well. I only have one machine see, but Bryce doesn't use both CPU's... I figured if I ran Bryce Lightning, plus normal Bryce, and rendered in network render mode, then Lightning would do a bit and Bryce UI would do a bit... Feeling more silly by the moment. LOL Mark.