Have you updated to the latest version? If not, do that. And try it again. I am not sure about the bahavior of dynamics, but for morphs you should avoid the new option of Poser 6 - that morphs are saved to a separate file. You can do that in the Poser preferences. I think something has changed with that in the latest Infinite update but am not too sure about that so why taking the risk?

One day your ship comes in - but you're at the airport.