I was validating my site after I installed the plugin and ran into an issue where you have multiple post on the same page.
If the sociable function is called more than once it places the same "ID" in multiple places.
To fix use the wordpress plugin editor and change ( id=" ) in sociable.php on line 699 to ( class=" ). There were six locations where this needed to be changed. Lines 699, 893, 1013, 1015, 1019 and 1040.