Steve, those are very cool! I haven't tried bitmaps for clouds, but after seeing what you've done, I'm going to have to give it a go. :) Vel, I've got alternate tree and plant materials at my site that will give you an idea of how to use different bitmaps for the vegetation. Treasures d'Esprit I don't see anything offhand in the info you provided that might explain those errors. You could write E-on's support and ask them about it. They might be able to provide some ideas. I don't know how much help they give for the demo, but I'm sure they'd be interested in figuring out why it's doing that to you. The way I view it, it can't hurt to ask, even if you have to wait awhile for a response maybe? :)