Thanks Juggledad you pointed me in the right location.
It wasn't a plugin as such but missing code in the html widget.
I had this
HTML Code:
<a href="http://www.twitter.com/vsteps_net" target="_blank"><img src="http://vsteps.net/wp-content/themes/atahualpa/images/twitter_48.png"/></a>
<a href="http://www.facebook.com/graham.smith.963434" target="_blank"><img src="http://vsteps.net/wp-content/themes/atahualpa/images/facebook_48.png"/></a>
<a href="http://plus.google.com/104961271043843896069" target="_blank"><img src="http://vsteps.net/wp-content/themes/atahualpa/images/google_plus.png"/>
<a href="http://uk.linkedin.com/pub/graham-smith/5b/882/7a"target="_blank"><img src="http://vsteps.net/wp-content/themes/atahualpa/images/linkedIn_48.png"/>
and I should have had this. note the missing </a> 's on the last two lines of code.
HTML Code:
<a href="http://www.twitter.com/vsteps_net" target="_blank"><img src="http://vsteps.net/wp-content/themes/atahualpa/images/twitter_48.png"/></a>
<a href="http://www.facebook.com/graham.smith.963434" target="_blank"><img src="http://vsteps.net/wp-content/themes/atahualpa/images/facebook_48.png"/></a>
<a href="http://plus.google.com/104961271043843896069" target="_blank"><img src="http://vsteps.net/wp-content/themes/atahualpa/images/google_plus.png"/></a>
<a href="http://uk.linkedin.com/pub/graham-smith/5b/882/7a" target="_blank"><img src="http://vsteps.net/wp-content/themes/atahualpa/images/linkedIn_48.png"/></a>
You can mark this one as solved thanks