<div>
Actually, your main-nav is 0px height, if you add overflow:hidden; to your CSS &nbsp;it will get height of content inside.
</div>

<div>
where do you see the height set to 0px? &nbsp; 

<pre><code class="code-10 nolinks" id="code-8168646">*ul#main-nav li ul li a {min-width:90px;} /*needed to manage width of IE7 drop down buttons*/


ul#main-nav {
	margin:0px 0px 10px 170px;
	width:935px;
padding-top:70px;
height:80px;
	position:absolute;
}


ul#main-nav li {
	margin:0;
	padding:0;
	list-style:none;
	float:left;
	display:inline; /*needed for ie bug*/
}

ul#main-nav li a {
	text-decoration:none;
	display:block;
	color:#333; /*main button text color no activity*/
	padding:4px 15px 6px;
font-family: Arial, Helvetica, sans-serif;
	font-size:14px;
	text-align:center;
	border-right:1px solid #666;
	white-space:nowrap;
	
	}

ul#main-nav li a:hover, ul#main-nav	li a:focus {
	text-decoration:none;
background-color:#14174f;
color:#fff;
	}

	
	
ul#main-nav li ul {
	padding:0;
	margin:0;
	display:none;}

ul#main-nav li:hover ul {/*needed so mouseovers float over main image*/
	display:block;
position:absolute; 
}

ul#main-nav li ul li {float:none;}

ul#main-nav li ul li a { /*drop down menu buttons w/o mouseover*/
	font-size:14px;
text-decoration:none;
background-color:#fff;
color:#000;
margin:0;
height:20px;
text-align:left;
border:0 none;
}




/*THIRD LEVEL BUTTONS*/
ul#main-nav li ul ul {
	margin: -1em 0 0 10em;
}


ul#main-nav li.lastbutton a {
	border:none;
	padding-right:8px;}
</code></pre>
</div>

<div>
duh, was looking at an old test page. &nbsp;sorry 

</div>

<div>
It's auto if not set, auto div height is 0px, if there is no content like text. 
Add #main-nav {overflow:hidden;} to your css and you will be fine.
</div>

<div>
You won't find &quot;height set to 0px&quot;, browser apply it automatically.
</div>

<div>
i have asked my programmer to try all suggestions. &nbsp;no word yet if he has had any luck.
</div>

<div>
It works for me so should for you. Good luck! <a href="https://filedb.experts-exchange.com/incoming/2011/05_w21/459665/Capture.PNG" target="_blank" title="it works (485 KB)"><img alt="it works" class="file-block lazyload" style="max-width: 800px;" data-src="https://filedb.experts-exchange.com/incoming/2011/05_w21/800_459665/Capture.PNG" /></a> 
</div>

Capture.PNG

<div>
no, Why would I check IE7, it might have different issues which don't connect with what you asked.
</div>

<div>
Sorry, IE7 is where we are having tons of problems.
</div>

<div>
I suggest you select solution for question you have asked, and ask other new questions, Experts will be happy to help you.
</div>

<div>
<div class="content wysiwyg-content">
My programmer is struggling to figure out how to get the navigation to appear when he adds the carousel animation. &nbsp;For some reason, it goes missing. 
 
Missing navigation with animation 
<a href="http://nsitedesigns.com/nsitedesigns/miller/index_missingnav.html" rel="ugc">http://nsitedesigns.com/nsitedesigns/miller/index_missingnav.html</a> 
 
Navigation working when placeholder displayed as an image and not navigation 
<a href="http://nsitedesigns.com/nsitedesigns/miller/index_backupNav.html" rel="ugc">http://nsitedesigns.com/nsitedesigns/miller/index_backupNav.html</a> 
 
Help! &nbsp;
</div>
</div>

My programmer is struggling to figure out how to get the navigation to appear when he adds the carousel animation.  For some reason, it goes missing.

Missing navigation with animation
http://nsitedesigns.com/nsitedesigns/miller/index_missingnav.html

Navigation working when placeholder displayed as an image and not navigation
http://nsitedesigns.com/nsitedesigns/miller/index_backupNav.html

Help!  

navigation gone wild

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.

JavaScript

Cascading Style Sheets (CSS) is a language used for describing the look and formatting of a document written in a markup language. Usually used to change web pages and user interfaces written in HTML, it can also be applied to any kind of XML document. CSS is designed primarily to distinguish the content of a document from its presentation.

Web development includes all aspects of presenting content on intranets and the Internet, including delivery development, protocols, languages and standards, server software, browser clients, databases and multimedia generation.