I'm not sure if this is the correct place for this but.
Last night I started the Lore quest in the Demon's lair. About half way through the talk tree I had one of my hourly crash to desktops. On returning to the conversation I noticed that the quest was not updating, so I deleted it and tried to start it over. At this point all I get on greeting the ghost dragon is a greeting and nothing more.
Is there anything one can do to restart this Lore quest line?