Working in Drupal 7, I've created a custom content type "Announcement", intended to be distinct from the regular Article type. I haven't added any custom fields or anything esoteric.
The thing works, I can create Announcements and they show up as teasers in a blocks view I have set up for the purpose.
But when I click the teaser link, the announcement page is displayed as a basic HTML page - no theme. I'm using the Marinelli theme and it displays everything else just fine.
Here's the view, located in a sidebar, looks fine:
Clicking the link....
What am I missing?