Right - this kind of problem is not limited to Poser. These days with more software developers depending on 3rd party modules and plug-ins, the problem is compounding. It is no longer financially viable for a developer to underwrite the cost of creating their own render engines, shaders, cloth, hair etc. and still keep up with the competition. So we have issues of compatibility between components that need to be addressed by each application. In fact I was just talking with Roman Ormandy (CEO of Caligari - Truespace) at a showing of the new Truespace 7 software, and they are having similar issues that they are addressing. It is really hard to find every different issue until the application is fully integrated and in the marketplace with thousands of people doing different things with it. Anyway, some of you might be interested to know that Truespace 7 will have a material system very similar to Poser 5, and it looks like swapping materials will be relatively easy.