Try searching the NET for peoples personal web sites that are dedicated to RDS stuff. If you're lucky there's still some around. Somone used to have the archives of the old 'Lightlink' users forum for RDS. If that's still available, you'll find a LOT of info on them. I remember stuff being posted about ways to keep the 3D paint tools from crashing RDS so much. Otherwise... The 3D paint tools were ALWAYS very unstable. I recommend avoiding them, completely. Painter 3D never REALLY "integrated well within" RDS, either. Getting RDS (or otherwise) models converted into implicit/parametric mapping before painting in P3D is a pain-in the @$$, too. Every piece has to be converted to meshform, then have it's UV coord. converted inside of the Meshform Modeler. THEN... you'll be best off exporting the pieces out of RDS, and import them into P3D without launching it from within RDS. If you paint with muitiple maps, in P3D, each map will have to be manually loaded into their proper channels in the RDS 'shader editor'.