I may have solved my issue. Before, I was calling the flash file in with <object> (swfobject static publishing default). On a whim, I decided to try and call the Flash file with the "dynamic" method of swfobject. As a result, my Superfish menu now appears correctly. Here is my code for reference:
<div id="home-showcase"> <script type="text/javascript"> var flashvars = {}; var params = {}; params.wmode = "opaque"; var attributes = {}; attributes.align = "top"; swfobject.embedSWF("showcase_new.swf", "home-showcase", "904", "276", "9.0.0", false, flashvars, params, attributes); </script> <div id="home-showcase"> <a href="http://www.adobe.com/go/getflashplayer"> <img src="http://www.adobe.com/images/shared/download_buttons/ get_flash_player.gif" alt="Get Adobe Flash player" /></a> </div> Hopefully this will help anybody else who may run into a similar issue. By the way, thank you for this great plugin, Joel.