Spry Menu and Web Design Problem

Question

Hello Folks,
    I've been working feverishly on a layout for my father's new company but my progress has recently hit a snag. For the past hour and a half I've been trying to solve two problems:
1. In Internet Explorer (IE 6), Opera, and Firefox (3.x) - there are a white lines appearing in the spry navigation menu (usually towards the right) after the last tab called "Company Info." The following URL is an example of my problem:
http://www.personal.psu.edu/sbk142/real_test1.html
2. Only in Firefox (believe it or not) - there is a space occuring between my spry navigation bar and the company logo (refer to the URL above). I'm pretty sure it has something to do with the spry menu properties that I assigned but I'm not sure where to begin.
Thanks in advance for your help and happy holidays.
Sam
PS> The following are the CSS files for my website. Let me know if there are other files you need me to upload.
------------------Beginning of SpryMenuBarHorizontal-----------------------------
@charset "UTF-8";
/* SpryMenuBarHorizontal.css - Revision: Spry Preview Release 1.4 */
/* 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
    padding: 0;
    list-style-type: none;
    font-size: 97%;
    cursor: default;
    width: auto;
    margin-bottom: 0em;
/* 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
    list-style-type: none;
    font-size: 100%;
    position: relative;
    text-align: left;
    cursor: pointer;
    width: 9.5em;
    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: 8.2em;
    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;
/* Menu item containers are same fixed width as parent */
ul.MenuBarHorizontal ul li
    width: 8.2em;
    border-top-width: .1em;
    border-top-style: solid;
    border-top-color: #FFFFFF;
/* Submenus should appear slightly overlapping to the right (95%) and up (-5%) */
ul.MenuBarHorizontal ul ul
    position: absolute;
    margin-left: 8em;
    margin-top: 0.5em;
    margin-right: 0em;
/* 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 #CCCCCC;
/* Menu items are a light gray block with padding and no text decoration */
ul.MenuBarHorizontal a
    display: block;
    cursor: pointer;
    background-color: #5B6372;
    text-decoration: none;
    text-align: center;
    color: #FFFFFF;
    padding-top: 0.05em;
/* 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: #33C;
    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: #33C;
    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(/sbk142/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(/sbk142/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(/sbk142/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(/sbk142/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;
/* 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;
----------------Beginning of Website Layout (CSS) File----------------------------
#left_pane {
    background-image: url(/sbk142/left_pane.gif);
    background-repeat: no-repeat;
    height: 682px;
    width: 131px;
#nav {
    background-image: url(/sbk142/navigation.gif);
    background-repeat: no-repeat;
    height: 19px;
    width: 800px;
#mission_content {
    background-image: url(/sbk142/mission_content.gif);
    background-repeat: no-repeat;
    height: 191px;
    width: 639px;
#news_content {
    background-image: url(/sbk142/news_content.gif);
    background-repeat: no-repeat;
    height: 365px;
    width: 307px;
#promo_content {
    background-image: url(/sbk142/promo_content.gif);
    background-repeat: no-repeat;
    height: 161px;
    width: 309px;
#pop_content {
    background-image: url(/sbk142/pop_content.gif);
    background-repeat: no-repeat;
    height: 161px;
    width: 309px;
#body_top_border {
    background-image: url(/sbk142/mission_top_border.gif);
    background-repeat: no-repeat;
    height: 11px;
    width: 669px;
#body_border_left {
    background-image: url(/sbk142/body_left_border.gif);
    background-repeat: no-repeat;
    height: 671px;
    width: 14px;
#body_border_right {
    background-image: url(/sbk142/body_border_right.gif);
    background-repeat: no-repeat;
    height: 671px;
    width: 16px;

Answer 1

After spending another hour and a half trying to understand my mistakes I decided to create a new layout.
http://www.personal.psu.edu/sbk142/template7.html
Thanks to those who allocated some time to help me.
HAPPY HOLIDAYS!!!!!!!!