I’m using the standard JS to load the Tweet button. IE9 runs the script, and the elements for the button are generated, but they are not visible. Other buttons drawn in a similar way on the page (FB share, for instance) display correctly. The button lives inside of a flyout that is only visible during a hover state. The flyout is the right size/position (it gets its h/w from the contained iframe instantiated by the js), but all I see is white background. Getting no JS errors and I’ve tried playing with positioning/z-indices.