Sociable Icons are not displaying

I have icons missing from the Sociable links at the bottom of my blog posts.

Check it out here.http://www.annak.co.za

I’ve reset the plugin; that didn’t work. So I deleted it, downloaded the latest version and re-installed it. Same situation.

There are also blank items listed among the “icons to include” section of the settings.

Any suggestions would be greatly appreciated.

http://wordpress.org/extend/plugins/sociable/