Spry Menu Bar Positioning Problem in IE

Question

I have a Dreamweaver-created Spry Menu Bar drop down menu which works perfectly in every browser on my Mac and on my PC . . . EXCEPT Internet Explorer (who woulda thunk it?!!)
In all browsers except for IE, the 3 submenu items under "Door Systems" and "Gallery" appear exactly as they should in a vertical row, positioned just below the brown line below the navigation links and all the same width. But in IE they appear higher up and with different widths. IE is ignoring the rules for width and position.
  <ul id="MenuBar2" class="MenuBarHorizontal">
    <li><a class="MenuBarItemSubmenu" href="closet_doors_gallery.html">DOOR SYSTEMS</a>
      <ul>
        <li><a href="sliding_doors_nyc_nj.html">DOOR PROFILES</a></li>
        <li><a href="bifold_doors_nyc_nj.html">PANELS COLORS</a></li>
        <li><a href="room_dividers_nyc_nj.html">DOOR SYSTEM TYPES</a></li>
      </ul>
    </li>
  </ul>
<ul id="MenuBar3" class="MenuBarHorizontal">
    <li><a class="MenuBarItemSubmenu" href="#">GALLERY </a>
      <ul>
        <li><a href="#">SLIDING DOORS</a></li>
        <li><a href="#">BI-FOLD DOORS</a></li>
        <li><a href="#">ROOM DIVIDERS</a></li>
      </ul>
    </li>
  </ul>
Here is the page where you can see the problem if you view it with IE, and see that it's  fine in Safari, and Firefox,    Chrome and Opera, Mac or PC:
http://2113web.com/indeco/index.html
I have a feeling it's a simple fix of the css, but I can't figure it out - I would really appreciate anyone's help with it - thank you!
Below is the CSS:
@charset "UTF-8";
/* SpryMenuBarHorizontal.css - version 0.6 - Spry Pre-Release 1.6.1 */
/* Copyright (c) 2006. Adobe Systems Incorporated. All rights reserved. */
LAYOUT INFORMATION: describes box model, positioning, z-order
/* The outermost container of the Menu Bar, an auto width box with no margin or padding */
ul.MenuBarHorizontal
    margin: 0;
    padding: 0;
    list-style-type: none;
    font-size: 100%;
    font-weight:bold;
    cursor: default;
    width: auto;
/* Set the active Menu Bar with this class, currently setting z-index to accomodate IE rendering bug: http://therealcrisp.xs4all.nl/meuk/IE-zindexbug.html */
ul.MenuBarActive
    z-index: 1000;
/* Menu item containers, position children relative to this container and are a fixed width */
ul.MenuBarHorizontal li
    margin: 0;
    padding: 0;
    list-style-type: none;
    font-size: 100%;
    position: relative;
    text-align: left;
    cursor: pointer;
    width: auto;
    float: left;
    white-space: nowrap;
/* Submenus should appear below their parent (top: 0) with a higher z-index, but they are initially off the left side of the screen (-1000em) */
ul.MenuBarHorizontal ul
    margin: 0;
    padding: 0;
    list-style-type: none;
    font-size: 100%;
    z-index: 1020;
    cursor: default;
    width: auto;
    position: absolute;
    left: -1000em;
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to auto so it comes onto the screen below its parent menu item */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible
    left: auto;
    top: 63px; /*THIS POSITIONS THE SUBMENU BELOW THE TOP MENU*/
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li
    float: none;
    background-color:#f5f5e8;
    height:25px; /*THIS POSITIONS THE SUBMENUS HEIGHT*/
/* Submenus should appear slightly overlapping to the right (95%) and up (-5%) */
ul.MenuBarHorizontal ul ul
    position: absolute;
    margin-top: -5%;
    margin-right: 0;
    margin-bottom: 0;
    margin-left: 95%;
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to 0 so it comes onto the screen */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible ul.MenuBarSubmenuVisible
    left: auto;
    top: 0;
DESIGN INFORMATION: describes color scheme, borders, fonts
/* Submenu containers have borders on all sides */
ul.MenuBarHorizontal ul
    border:none;
/* Menu items are a light gray block with padding and no text decoration */
ul.MenuBarHorizontal a
    display: block;
    cursor: pointer;
    background-color: transparent;
    padding: 0.5em 0.75em;
    color: #59330d;
    text-decoration: none;
/* Menu items that have mouse over or focus have a blue background and white text */
ul.MenuBarHorizontal a:hover, ul.MenuBarHorizontal a:focus
    background-color: transparent;
    color: #afa06f;
/* Menu items that are open with submenus are set to MenuBarItemHover with a blue background and white text */
ul.MenuBarHorizontal a.MenuBarItemHover, ul.MenuBarHorizontal a.MenuBarItemSubmenuHover, ul.MenuBarHorizontal a.MenuBarSubmenuVisible
    background-color: transparent;
    color: #afa06f;
SUBMENU INDICATION: styles if there is a submenu under a given menu item
/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%)
ul.MenuBarHorizontal a.MenuBarItemSubmenu
    background-image: url(SpryMenuBarDown.gif);
    background-repeat: no-repeat;
    background-position: 95% 50%;
Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%)
ul.MenuBarHorizontal ul a.MenuBarItemSubmenu
    background-image: url(SpryMenuBarRight.gif);
    background-repeat: no-repeat;
    background-position: 95% 50%;
Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%)
ul.MenuBarHorizontal a.MenuBarItemSubmenuHover
    background-image: url(SpryMenuBarDownHover.gif);
    background-repeat: no-repeat;
    background-position: 95% 50%;
Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%)
ul.MenuBarHorizontal ul a.MenuBarItemSubmenuHover
    background-image: url(SpryMenuBarRightHover.gif);
    background-repeat: no-repeat;
    background-position: 95% 50%;
BROWSER HACKS: the hacks below should not be changed unless you are an expert
/* HACK FOR IE: to make sure the sub menus show above form controls, we underlay each submenu with an iframe */
ul.MenuBarHorizontal iframe
    position: absolute;
    z-index: 1010;
    filter:alpha(opacity:0.1);
/* HACK FOR IE: to stabilize appearance of menu items; the slash in float is to keep IE 5.0 from parsing */
@media screen, projection
    ul.MenuBarHorizontal li.MenuBarItemIE
        display: inline;
        f\loat: left;
        background: #FFF;
Perry

Answer 1

Hi and thank you very much. It was a little confusing as to whether you meant to add the rules you suggested or to replace them, or a combination of both, but I puzzled it out. I created a new MenuBarHorizontal.css file in a blank page and then made the changes you suggested and it works! Yay! I had to do a bit of tweaking to get it to look just the way I wanted, but it now works correctly in ie 7 and 8 and still works fine in everything else.
Interestingly enough, I had to change the margin-top: 63px; rule in "ul.MenuBarHorizontal ul.MenuBarSubmenuVisible" to 40px to get it positioned properly vertically, and I had to get rid of the "border-bottom: solid 1px #EEE;" in "ul.MenuBarHorizontal ul li", which caused the submenu items to have quite a lot of vertical space between them - I'm not sure why!
I also had to get rid of all the syling rules in the "SUBMENU INDICATION: styles if there is a submenu under a given menu item" section, as well as the one you added: "ul.MenuBarHorizontal a.MenuBarItemSubmenu {
    padding: 0.5em 2em 0.5em 0.75em;"
With that done, it works great in both ie7 and ie8, so thank you for the help. Below is the new css that works, in total.
Not being as familiar with the subtleties of CSS as you and many others obviously are, I'm REALLY curious as to exactly what is different that causes this to work now, and would be happy to hear your expanation, if you feel like taking the time to explain. If not, no problem - it works and that is the most important thing! So, thank you again -
Perry
@charset "UTF-8";
/* SpryMenuBarHorizontal.css - version 0.6 - Spry Pre-Release 1.6.1 */
/* Copyright (c) 2006. Adobe Systems Incorporated. All rights reserved. */
LAYOUT INFORMATION: describes box model, positioning, z-order
/* The outermost container of the Menu Bar, an auto width box with no margin or padding */
ul.MenuBarHorizontal
    margin: 0;
    padding: 0;
    list-style-type: none;
    font-size: 100%;
    cursor: default;
    width: auto;
/* Set the active Menu Bar with this class, currently setting z-index to accomodate IE rendering bug: http://therealcrisp.xs4all.nl/meuk/IE-zindexbug.html */
ul.MenuBarActive
    z-index: 1000;
/* Menu item containers, position children relative to this container and are a fixed width */
ul.MenuBarHorizontal li
    margin: 0;
    padding: 0;
    list-style-type: none;
    font-size: 100%;
    position: relative;
    text-align: left;
    cursor: pointer;
    width: auto;
    float: left;
/* Submenus should appear below their parent (top: 0) with a higher z-index, but they are initially off the left side of the screen (-1000em) */
ul.MenuBarHorizontal ul
    margin: 0;
    padding: 0;
    list-style-type: none;
    font-size: 100%;
    z-index: 1020;
    cursor: default;
    width: auto;
    position: absolute;
    left: -1000em;
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to auto so it comes onto the screen below its parent menu item */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible
    left: auto;
    margin-top: 40px;
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li
    display: block;
    float: none !important;
    width: auto;
    white-space: nowrap;
/* Submenus should appear slightly overlapping to the right (95%) and up (-5%) */
ul.MenuBarHorizontal ul ul
    position: absolute;
    margin: -5% 0 0 95%;
/* Submenu that is showing with class designation MenuBarSubmenuVisible, we set left to 0 so it comes onto the screen */
ul.MenuBarHorizontal ul.MenuBarSubmenuVisible ul.MenuBarSubmenuVisible
    left: auto;
    top: 0;
DESIGN INFORMATION: describes color scheme, borders, fonts
/* Submenu containers have borders on all sides */
ul.MenuBarHorizontal ul
    border: 1px solid #CCC;
/* Menu items are a light gray block with padding and no text decoration */
ul.MenuBarHorizontal a
    display: block;
    cursor: pointer;
    background-color: #f5f5e8;
    padding: 0.5em 0.75em;
    color: #333;
    text-decoration: none;
/* Menu items that have mouse over or focus have a blue background and white text */
ul.MenuBarHorizontal a:hover, ul.MenuBarHorizontal a:focus
      background-color: #f5f5e8;
    color: #afa06f;
/* Menu items that are open with submenus are set to MenuBarItemHover with a blue background and white text */
ul.MenuBarHorizontal a.MenuBarItemHover, ul.MenuBarHorizontal a.MenuBarItemSubmenuHover, ul.MenuBarHorizontal a.MenuBarSubmenuVisible
      background-color: #f5f5e8;
    color: #afa06f;
SUBMENU INDICATION: styles if there is a submenu under a given menu item
/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenu
/* Menu items that have a submenu have the class designation MenuBarItemSubmenu and are set to use a background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenu
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal a.MenuBarItemSubmenuHover
/* Menu items that are open with submenus have the class designation MenuBarItemSubmenuHover and are set to use a "hover" background image positioned on the far left (95%) and centered vertically (50%) */
ul.MenuBarHorizontal ul a.MenuBarItemSubmenuHover
BROWSER HACKS: the hacks below should not be changed unless you are an expert
/* HACK FOR IE: to make sure the sub menus show above form controls, we underlay each submenu with an iframe */
ul.MenuBarHorizontal iframe
    position: absolute;
    z-index: 1010;
    filter:alpha(opacity:0.1);
    background: transparent;
/* HACK FOR IE: to stabilize appearance of menu items; the slash in float is to keep IE 5.0 from parsing */
@media screen, projection
    ul.MenuBarHorizontal li.MenuBarItemIE
        display: inline;
        f\loat: left;
        background: #FFF;