Popover frame of .png image not working

Hello!
The plugin is very good!

1. It is set up to show when users are not logged in.
2. When they click on it it shows again on the promoted item/page/post. Can it not show when it is clicked on?
3. When clicked to close it appears again each time you navigate to a different page. Can it be disabled for that session when the user closes it using the X on the top left?
2. I am using the popover with just one image and the image is not well framed below (grey default frame) by the plugin. Pls see bellow:

Link to see it working: http://linkedbees.com