I can't begin to guess at what might be causing this. I took it upon myself to delete the 'Troll' node entirely (after copying the dialog to a Notepad file), then reloaded the Editor, checked the conversation and, sure enough, that whole node was gone from the conversation. Good. Closed Editor, opened her back up and added a new node called Guard with the dialog I saved.
![[Linked Image]](http://i.minus.com/ibcNvAgnoPyTQK.png)
Aagh!