SyntaxHighlighter not showing toolbar

I am using the latest SyntaxHighlighter within my app and for some reason the toolbars do not show in IE, Firefox or Chrome. The code highlights without issue, but I want to have toolbars. What makes things worse is that the toolbar demo on the official website is not working either.

Am I missing something obvious? Below are the code nuggets.

public static bool HelloWorld()
{
    // Return
    return false;
}