Gotcha. I'm still trying to work out a combination of Photoshop filters that will correctly create a bumpmap BUM type from a bumpmap greyscale type manually. I've also noticed that you can get nice nice enhancement effect by running an unsharp mask filter on the bumpmap. And finally, last but not least, I should sit down and build a BUM corrector CGI script and put it up on my Free Stuff page. I can, pretty easily, make a CGI (uhm, perl common gateway interface, not computer generated imagery) script to upload a BUM, invert the green channel, and hand the file right back.