RSS feed widget not working anymore?

Hi all,

Just a quick question about the RSS feed widget if anyone knows please? I burn my feeds through Feed Burner and I have an RSS widget in my side bar showing the 5 latest news. It was working like a charm until few weeks ago. Today I published a new post and the RSS widget didn’t get updated. It is still showing the second latest post as the first one in the list. Tried to delete the post and republish it. Nothing. tried to create 3-4 test posts and it didn’t work. The widget is still showing the post before the one I published today. The only things that happened during these days have been few updates, one to version 3.2.1 and one of the theme, I guess it was twentyten. Since I’m using a modified clone of twentyten I suspect maybe my theme is not supporting some update to the way WP manages widgets, hence the update of 2010 theme? Just an idea…

Thanks!