Plus One plugin causes loss of secure connection

Using this plugin http://wordpress.org/extend/plugins/plus-one/
and it seems to work well, the only bug I run into is that it will not allow the secure connection on our online giving page to remain secure. I have selected that it only be used in posts from the plugin’s menu of options, but it is still deactivating the page’s secure connection. Any thoughts/help would be appreciated. Thank you!