Hi, i've been trying to put a drop down menu in place, it works but only in Internet explorer compatibility mode!


CSS
#nav, #nav ul { padding: 0; margin: 0; list-style: none; }
#nav li { float: left; position: relative; width: 14em; background-color: #ffffff; color: #fffff; font-size: 1.0em; margin-right: 1em; }
#nav a:link, #nav a:visited { display: block; text-decoration: none; padding-left: 1em; color: #fffff; }


#nav ul { display: none; position: absolute; padding: 0; }
#nav ul li { border: 0 none transparent; border-bottom: 1px solid #fffff; border-top: .5em solid #FFF; background-color: #fffff; font-size: 0.9em; margin-bottom: -1px; margin-top: 1px; padding: 0; }
#nav li:hover ul { display: block; }

Html
<ul id="nav">
<li><a href="../membersonly/memberlogin.php">Member already?</a></li>
<ul>
<li><a href="../membersonly/memberlogin.php">Login</a></li>
<li><a href="../members/list.php">Who else is a member?</a></li>
<li><a href="../members/member_benefits.php">Use of logo</a></li>
</ul>

<li><a href="../membersonly/memberlogin.php">Member quick links</a></li>
<ul>
<li><a href="../members/food-law-alert.php">Food law alert</a></li>
<li><a href="../research/panels.php">Panels</a></li>
<li><a href="../new-technologies.php">NTB</a></li>
</ul>


<li><a href="../membersonly/memberlogin.php">Why join?</a></li>
<ul>
<li><a href="../members/member_benefits.php">What do you get?</a></li>
<li><a href="../members/member_benefits.php">Joining process</a></li>
<li><a href="../members/member_benefits.php">Application form</a></li>
</ul>


<li><a href="../membersonly/memberlogin.php">Ways to join</a></li>
<ul>
<li><a href="../members/member_team.php">Contact us</a></li>
<li><a href="../members/member_team.php">Enquiry form</a></li>
<li><a href="../members/member_team.php">PDF Application form</a></li>
</ul>


<li><a href="../membersonly/memberlogin.php">Brewing members</a></li>
<ul>
<li><a href="http://www.bri-advantage.com/">Brewing membership</a></li>
</ul>
</ul>
I'm using this:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">


Sorry for the long post! any help would be brilliant

Thanks!