I thought I had modified the Rokstories placeholder widget by changing its content in the back end. But when refreshing the page, it is still the same intro from the initial installation.
I am not trying to add Roktories, mind you, just rewrite what is there.
Not sure why when in the back end (Grunge Theme, then Front Page from Default Settings Pull Down, then the widgets button, then edit the Showcase Widget on the right and nothing updates on the front page.