quest making- dialog messing up

[oblivirim]

I made a custom quest following a tutorial, and I scripted the way the tut said and gave the npc the script, then I clicked on dialog and set it to the name of my quest so that the npc would have the right topics, but if i click ok, the open the dialog box again, it is reset to ALL so the only topic is rumors when I try to talk to the npc. Does anybody know how to fix this?