the file is:
as you can see in firefox the 2 embedded .swf files are visible.
in i.e., only one of them does.
it (the header.php file) is also a php include on the index and all other pages. i just adopted the client's existing website and have found that the left nav menu is a .swf file.
question: why the difference in browsers? firefox sees both .swf files, i.e. sees only 1.