This is a result of the latest Internet Explorer update.

Microsoft recently lost a legal battle with a patent holder about the way Internet Explorer displays OBJECTs and EMBEDs in webpages. Microsoft then decided to update its Internet Explorer browser with changes requiring user input to display and activate ActiveX based media.

This affects all Flash animations but also other files such as QuickTime, RealPlayer, Java and Adobe Acrobat among others. It means users have to click the object first in order to activate its functions.

To fix the problem, please follow these steps:

Just below the last <object> in your HTML page, insert the following Javascript and the problem should be solved then.

<script type="text/javascript">
objects = document.getElementsByTagName("object");
for (var i = 0; i < objects.length; i++)
{
    objects[i].outerHTML = objects[i].outerHTML;
}
</script>