My social bookmarking widget is not appearing on *any* of my sites! I don't know when it suddenly disappeared - I suppose I was just taking it for granted

I'm using the plugin "AddThis Social Bookmarking Widget (drop-down)". I've tried deactivating it and installing instead the "AddThis Social Bookmarking Widget" plugin and that didn't work either. Same with the "Add to Any: Share/Bookmark/Email Button".

So I've deactivated them and reactivated the "AddThis Social Bookmarking Widget (drop-down)". But it still doesn't appear. And it's also not in my Available Widgets list.

The sites are all hosted with Hostgator. I'm using Wordpress Direct's template (not their hosting).

Is it a hosting issue does anyone know?

Isha