There appears to be a problem with the retweet function of the button.
When a user clicks retweet on blog post, s/he receives an over capacity error message from Twitter. However, when selecting the retweet button on a previous post, the button works.
Is there a configuration issue here? When the retweet is selected on the posts that have problems, there is a lag time and then the error appears. On the posts that do not have a problem, it connects immediately to twitter and opens the tweet dialogue box.