Antony,

Along the same lines as Pullo's and Paul's observations, please note that there are two (2) a:link rules in your d5dstyle.css sheet. The second rule, a:link {color:000080;} will override the first rule; therefore, the first rule will never be applied.

Also, there is an order in which anchors must be coded for the states to function that you may not be aware of:
a:link
a:visited
a:hover
a:active

Skipping or mixing the order of the pseudo-classes can have unexpected results. There's plenty of documentation around that explains how to code and color anchors.


Finally, I looked at your censusentries.php page. You are correct when you said that the HTML on that page has no validation errors, BUT, that is misleading. The page that WE SEE also includes the menu.php include file and the HTML in the menu.php is incorrectly formed. ALL of the errors indicated by the validator are from the menu.php code. Most are duplicate id's, BUT THE REST ARE STRAY TAGS. Those STRAY TAGS are the major cause of your menu problems; NOT THE CSS. I did not touch the CSS. I just matched the tags. Same thing I did with your previous page... cleaned up the tags in the include file. All the css in the world cannot make up for BROKEN HTML. Period.

Please look at the ENG & WALES menu items and see if the nested lists are working correctly.
Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="en-US">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title> Certificates in 5 Days C5D Census Entries</title>
    <link rel="stylesheet" href="http://www.c5d.co.uk/clubscreen.css" type="text/css" media="screen, projection" />
    <link rel="stylesheet" href="http://www.c5d.co.uk/c5dstyle.css" type="text/css" media="screen" />
    <link rel="stylesheet" href="http://www.c5d.co.uk/c5ddropdownmenu.css" type="text/css" media="screen" />
    <link rel='stylesheet' id='easy-fancybox.css-css' href='http://www.c5d.co.uk/wp-content/plugins/easy-fancybox/easy-fancybox.css.php?ver=1.3.4' type='text/css' media='screen' />
    <script src="http://www.c5d.co.uk/mootools-1.2.5-core-yc.js" type="text/javascript"></script>
    <script src="http://www.c5d.co.uk/MenuMatic_0.68.3.js" type="text/javascript"></script>
</head>
<body>

<script type="text/javascript">
    window.addEvent('domready', function() {
        var myMenu = new MenuMatic();
    });
</script>

<div id="wrapper">
    <div id="container" class="container">

<!-- BEGIN menu.php INCLUDE -->
        <div id="header" class="span-24" style="height:180px;">
            <div class="span-12">
                <img src="http://www.c5d.co.uk/c5dbackground.png" alt="my address" height="175" width="650" />
            </div>
            <div class="span-12 last" style="padding-top:30px; text-align:right;"></div>
        </div>
        <div class="span-24">
            <div id="navcontainer">
                <ul id="nav" class="menu">
                    <li id="menu-item-143" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-142"><a href="http://www.c5d.co.uk/homepage.php"><img src="http://www.c5d.co.uk/home.gif" alt ="home" /></a></li>
                    <li id="menu-item-64" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-78"><a href="http://www.c5d.co.uk/homepage.php">Eng &amp; Wales</a>
                        <ul class="sub-menu">
                            <li id="menu-item-64000" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-78"><a href="http://www.c5d.co.uk/homepage.php">England&nbsp;&amp;&nbsp;Wales&nbsp;Certificates</a>
                                <ul>
                                    <li id="dummy1"><a href="http://www.c5d.co.uk/parishrecords.php">Parish&nbsp;Register&nbsp;Entries</a></li>
                                    <li id="dummy2"><a href="http://www.c5d.co.uk/probates.php">Probates,&nbsp;Wills&nbsp;&amp;&nbsp;Admons</a></li>
                                    <li id="dummy3"><a href="http://www.c5d.co.uk/pre1858.php">Pre 1858 Probates</a></li>
                                </ul>
                            </li>
                            <li id="menu-item-90" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-90"><a href="http://www.c5d.co.uk/groups.php">Family&nbsp;Groups</a></li>
                            <li id="menu-item-92" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-91"><a href="http://www.c5d.co.uk/research.php">Research&nbsp;Service</a></li>
                            <li id="menu-item-93" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-92"><a href="http://www.c5d.co.uk/ninthfield.php">Large&nbsp;Orders</a></li>
                        </ul>
                    </li>
                    <li id="menu-item-98" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-98"><a href="http://www.c5d.co.uk/course.php">Scotland</a>
                        <ul class="sub-menu">
                            <li id="menu-item-99" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-99"><a href="http://www.c5d.co.uk/scotland.php">Scottish&nbsp;Certificates</a></li>
                            <li id="menu-item-100" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-100"><a href="https://secure.jotformeu.com/form/20562318766356">Scottish&nbsp;Order&nbsp;Form</a></li>
                        </ul>
                    </li>
                    <li id="menu-item-95" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-95"><a href="http://www.c5d.co.uk/northernireland.php">N.Ireland</a>
                        <ul class="sub-menu">
                            <li id="menu-item-120" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-120"><a href="http://www.c5d.co.uk/northernireland.php">Northern&nbsp;Irish&nbsp;Certificates</a></li>
                            <li id="menu-item-104" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-104"><a href="https://secure.jotformeu.com/form/20562335218347">Northern&nbsp;Ireland&nbsp;Order&nbsp;Form</a></li>
                        </ul>
                    </li>
                    <li id="menu-item-114" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-114"><a href="http://www.c5d.co.uk/ro1.php">Eire</a>
                        <ul class="sub-menu">
                            <li id="menu-item-44" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-44"><a href="http://www.c5d.co.uk/roi.php">Irish&nbsp;Certificates</a></li>
                            <li id="menu-item-116" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-116"><a href="http://form.jotformeu.com/form/20560737900349">Irish&nbsp;Certificate&nbsp;Order&nbsp;Form</a></li>
                        </ul>
                    </li>
                    <li id="dummy7"><a href="http://www.c5d.co.uk/parishrecords.php">P R Es</a>
                        <ul class="sub-menu">
                            <li id="dummy5"><a href="http://www.c5d.co.uk/parishrecords.php">Parish&nbsp;Register&nbsp;Entries</a></li>
                            <li id="dummy6"><a href="https://secure.jotformeu.com/form/20563263008345">Parish&nbsp;Register&nbsp;Order&nbsp;Form</a></li>
                        </ul>
                    </li>
                    <li id="menu-item-227" class="menu-item menu-item-type-post_type menu-item-object-page current-menu-item page_item page-item-222 current_page_item menu-item-227"><a href="http://www.c5d.co.uk/censusentries.php">Censuses</a>
                        <ul class="sub-menu">
                            <li id="menu-item-62" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-134"><a href="http://www.c5d.co.uk/censusentries.php">Census&nbsp;Entry&nbsp;Copies</a></li>
                            <li id="menu-item-42" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-42"><a href="https://secure.jotformeu.com/form/20563312173343">Census&nbsp;Order&nbsp;Form</a></li>
                        </ul>
                    </li>
                    <li id="menu-item-61" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-61"><a href="http://www.c5d.co.uk/sterlingpayments.php">Payments in &#163;</a>
                        <ul class="sub-menu">
                            <li id="menu-item-52" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-52"><a href="http://www.c5d.co.uk/sterlingpayments.php">Make&nbsp;Payments&nbsp;in&nbsp;&#163;</a></li>
                        <li id="menu-item-42000" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-42"><a href="https://secure.jotformeu.com/form/20562220135338">Order Form</a></li></ul>
                    </li>
                    <li id="menu-item-51" class="menu-item menu-item-type-custom menu-item-object-custom menu-item-51"><a href="http://www.c5d.co.uk/nzcerts.php">NZ</a>
                        <ul class="sub-menu">
                            <li id="menu-item-122" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-122"><a href="http://www.c5d.co.uk/nzcerts.php">New&nbsp;Zealand&nbsp;Certificates</a></li>
                            <li id="menu-item-122000" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-122"><a href="http://www.c5d.co.uk/nzcerts.php">Order Form</a></li>
                        </ul>
                    </li>
                    <li id="menu-item-61000" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-61"><a href="http://www.c5d.co.uk/probates.php">Probates</a>
                        <ul class="sub-menu">
                            <li id="dummy8"><a href="http://www.c5d.co.uk/probates.php">Probates,&nbsp;Wills&nbsp;&amp;&nbsp;Admons</a></li>
                        </ul>
                    </li>
                    <li id="menu-item-420000" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-42"><a href="http://www.c5d.co.uk/pre1858.php">Pre&nbsp;1858&nbsp;Probates</a></li>
                    <li id="menu-item-4200000" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-42"><a href="https://secure.jotform.com/form/20393244360"> Probate&nbsp;Order&nbsp;Form</a></li>
                </ul>
            </div>
        </div>
<!-- END menu.php INCLUDE -->
<a href="http://form.jotformeu.com/form/20563312173343" class="three">Secure Order Form Now Available</a>
<h1>A Personal Service not just a Certificate Supplier.</h1>
<br />
<br /><center><div align="center"><a href="http://www.jdoqocy.com/click-5433512-10520381" target="top">
<img src="http://www.awltovhc.com/image-5433512-10520381" width="264" height="60" alt="234x60 I am, your Nan" border="0" /></a>
 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--START MERCHANT:merchant name Find My Past from affiliatewindow.com.-->
            <a href="http://www.awin1.com/cread.php?s=265538&amp;v=2114&amp;q=126749&amp;r=127588"><img src="http://www.awin1.com/cshow.php?s=265538&amp;v=2114&amp;q=126749&amp;r=127588" width="264" height="60" alt="264x60" border="0" /></a>
            <!--END MERCHANT:merchant name Find My Past from affiliatewindow.com--></div></center>
            <br />
            <br />Censuses taken in England
&amp; Wales for the years 1841-1911 are generally all available on line
now although mostly on a Pay per View Basis.
<br />
<br />If you do not have access to the censuses, I
can provide copies of any entry at a fee of &#163;1 per name, plus &#163;1.35 for
postage &amp; packing.
Please complete this order form. <a href="http://form.jotformeu.com/form/20563312173343" class="three">Order Censuses</a>
<br />
<br />
<br />If you would rather not provide me with your card details, you can click on this <a href="http://form.jotformeu.com/form/20561782479361" class="three">Order Form</a> to go directly to the Secure Paypal Payment Page
<br />
<br />
For further details please email me at: <img src="http://www.c5d.co.uk/address.png" width="340" border="0" alt="e mail address" />
<br />
<br />
The dates of the censuses are
<p class="two">UK CENSUS DATES</p>
<br />
<br />1841 - Jun 6/7
1851 - Mar 30/31. 1861 - Apr 7/8. 1871 - Apr 2/3. 1881 - Apr 3/4. 1891 - Apr
5/6. 1901 - Mar 31/Apr 1. 1911 - Apr 1/2 <p class="copy">&copy;C5D-Certificates</p>
</div>
</div>
</body>
</html>
You can copy and paste the corrected menu code to your menu.php file, BUT BE AWARE that I changed the duplicate id names to bogus names. You can find and correct them if they matter. They are easy to spot.