Block doesn't float after ajax vote using vote up down

I have a view with an exposed filter and node teasers with a vote up/down (http://drupal.org/project/vote_up_down) widget displaying for each node's teaser. Initially the block floats great but after an ajax vote on a teaser, the block gets stuck at the very top of the page (not even where it was originally). Refreshing the page fixes the problem (until another vote is cast)