Problem with static HTML widget
 

Using sitebuilder on vb5 beta 18, I've put the code for a simple twitter widget into a html widget. However, the widget is not displaying. The widget has a link to the twitter feed, but not the feed itself displaying. Any ideas?

I'm using the same code that I use in a static html widget on the cms of a vb 4 forum, so I know there's not a problem with the code.