I have seen similar to this using poser 9 and Dson on my imac. I found that generally leaving it to do its thing, the dson script eventually resolves the issue /completes the process on its own. For some reason it takes quite a looonnnggg time to load anything with dson but seems to be quicker the second time its loaded. Have you tried just leaving till it finishes?

Also make sure your running the latest versions of the Dson script and poser.

When its completed all of the dialogue boxes will close on there own. Eventually...