I'm really frustrated with this one. A few weeks ago I got it working in both firefox and ie just fine. Went back today to do some testing and found a problem with the display in firefox and I've been searching the code but can't find anything. I could use a few tips from anyone willing, I'm sure I'm looking at the wrong things. I upgraded my firefox version but I imagine my code is broke, not firefox. I'm assuming the problem is somewhere in my css file, but I'm not sure.

Here's what I've confirmed so far. There don't seem to be conflicts in other css files with < ul >'s or < li >'s that may be overriding settings. The other confirmation is that This works fine in Internet Explorer...therefore I must be an idiot, because its usually been the other way around (working in FF, but failing in IE).

Here's How it looks in IE (Notice the position of the folder icon right next to the text):

Here's how it looks in FF (Notice the folder icon is not being pushed down with its corresponding text).

Here's the Unordered List:

<ul id="nav">
    <li><a>Utah</a></li>
        <ul>
           <li><a>ParkCity</a>
               <ul>
                  <li><a>Com1</a></li>
                      <ul>
                          <li class="folder_closed"><a>Timber</a></li>
                          <div>SQUARE CONTAINER IS INSIDE THIS DIV</div>
                      </ul>
               </ul>
        </ul>
</ul>

Here's the CSS that is used for the whole menu:

/*  MENU NAVIGATION (<UL><LI> LISTS
****************************************/
ul#nav{
/* This handles the main root <ul> */
    margin-left:0;
    margin-right:0;
    padding-left:0px;
    text-indent:15px;   
}
ul#nav div{
  overflow: hidden;
}

#nav li>a:hover { 
    cursor: pointer;
}
#nav li > ul{ 
/* This will hide any element with an id of "nav" and an "li" that has a direct child that is a "ul" */
    display:none; 
    margin-left:0px; 
    margin-right:0px;
    padding-left:15px;
    padding-right:0px;
    text-indent:15px;
}
#nav li {
    list-style-type:none;
    list-style-image: none;
}
#nav > li{
    vertical-align: top;
    left:0px;
    text-align:left;
    clear: both;
    margin:0px;
    margin-right:0px;
    padding-right:0px;
}
.menu_parent{
    background-image: url(../images/maximize.png);
    background-repeat: no-repeat;
    background-position: 0px 1px; 
    position:relative;
}
.menu_parent_minimized{
    background-image: url(../images/minimize.png);
    background-repeat: no-repeat;
    background-position: 0px 1px; 
    position:relative;
}
.folder_closed{
    position:relative;
    background-image: url(../images/folder_closed12x14.png);
    background-repeat: no-repeat;
    background-position: 0px -2px; 
}

.folder_open{
    position:relative;
    background-image: url(../images/folder_open12x14.png);
    background-repeat: no-repeat;
    background-position: 0px -2px; 
}
</ul>