Hi Pat, you have two choices here. Either convert the jpegs to bum files or rewrite the MAT file. The first is done by use the render/materials menu. You load each bump JPEG in turn and poser converts them. It doesnt matter what you load them onto, most people do it onto the default ground. The second is done outside of Poser. Using Wordpad, load the PZ2 file from its appropriate folder in Runtime/libraries/pose, do a find and replace on ".BUM" and replace with ".jpg" then save as a renamed copy, still as a .PZ2 When you use this MAT pose it will do the job using JPEGs. You will need to copy the PZ2s .PNG file to make a Poser thumbnail. Hope this helps B) Mark