Hi, could you explain, how you configured the plugin? I mean, if possible, could you export the plugin-options from the database with a query like this:
WHERE option_name = 'widget_blogintroduction'
I couldn't explain to me, what's going wrong at your side.
Did you activate the ajax-refresh and what refresh-Intervall you entered?
How many entries do you have in the category you used?
This sounds all very strange to me but I need some info to do something like a diagnosis of the problem comming up there at your side.