Are you running Dramatica Pro on Windows 10, and does it crash when you attempt to bring up the Theme Browser?
This is a know bug, although we don't know why it seems to affect only a few clients with Windows 10. We suspect it may have to do with security or DEP settings related to the Theme Browser writing directly into video memory.
We are continuing to review possibilities. The Theme Browser is one of several methods of setting and viewing the storyform. For now, please use either the Query System or the Story Engine as substitute methods.