My name is Will. I'm a researcher at the University of Iowa. Our group has been using your Chimera software to visualize a model of our protein of interest. It's been very helpful but I've run into a small issue that I'd like to ask your advice on. I'm trying to convert the 3d image of the saved .py file into a universal 3D file (.u3d). I have tried several types of conversion software including polytrans/nugraph, 3DVIA Composer, and CS5 Adobe Photoshop with no success. Could you please tell me if conversion of .py to .u3d is possible, and if so how I might go about it. Thank you, I appreciate your time.