Spry Menu Issues - Not functioning correctly in Microsoft IE

Question

Hi there,
I am fairly new to web design and dreamweaver.
I have constructed a simple page that I am happy with complete with Spry Menu which again I am happy with.  However this spry menu works perfectly in firefox but for some reason on IE my spry menu does not function correctly and goes all over my page!
CORRECT VERTICAL MENU - FIREFOX -
INCORRECT MENU FUNCTION! - IE -
See my CSS Code below for the spry menu in questions - if this helps -
@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: inherit;
    font-size: 100%;
    cursor: default;
    width: 1000px;
    height: 47px;
/* 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: medium;
    position: relative;
    text-align: center;
    cursor: pointer;
    width: 318px;
    float: left;
    height: auto;
    background-color: #000000;
    border: 2px solid #FFF;
    font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
/* 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: auto;
    cursor: default;
    width: auto;
    position: absolute;
    left: -1000em;
    font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
/* 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;
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li
    width: 318px;
/* 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: 0px;
DESIGN INFORMATION: describes color scheme, borders, fonts
/* Submenu containers have borders on all sides */
ul.MenuBarHorizontal ul
    border: 1px solid #FFFFFF;
/* Menu items are a light gray block with padding and no text decoration */
ul.MenuBarHorizontal a
    display: block;
    cursor: pointer;
    background-color: #bcbdb9;
    padding: 0.5em 0.75em;
    color: #FFF;
    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: #000;
    color: #FFF;
/* 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: #000;
    color: #FFF;
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: inherit;
    f\loat: left;
    background: #FFF;
** I am also using Windows 8 and Dreamweaver CS6 If this helps.**
Any help with this would be fantastic as I need this to be resolved before the end of the week. 
Any further information required please message me to find out.
Thanks,
Jamie

Answer 1

THE CONFLICT IS BETWEEN YOUR DOCUMENT CSS AND THE SPRY CSS.
It is because the <li> and <a> TAGS have been styled and therefore OVERRIDDEN THE SPRY CSS.
Use CLASS TAGS e.g.  <li class="anyclass"> and <a class="anyclass">
and STOP USING THE <a> TAGS.
N.b. you may need to unstyle any <a> or other TAGS that conflict with the SPRY CSS.  (However it's best to start over knowing that styling basic tags may affect the SPRY CSS).