I have a IE issue which is driving me nuts, when I view my website in any IE I have a white background on the menu even though it is set to #8a8a8a well should be so it looks horrible and been searching for hours for a fix can any one help me the site is www.seotest15.co.uk this is my css :

 #wrapper, {
background: #8a8a8a;
min-width: 100%;
}

#header {
padding-top: 30px;
}

.business #loopedSlider .entry {
    padding: 0 0 0 0 ;
}

#navigation {
    border-color: #DBDBDB;
    border-radius: 0 0 0 0;
    border-style: solid;
    border-width: 0;
    box-shadow: none;
    margin: -4% 0 0 30.5%;
    width: 70%;
}





#navigation ul li:first-child, #navigation ul li:first-child a {
    border-radius: 5px 0 0 5px;
    margin-left: 0px;
}

ul.nav li a {
    color: #ffffff;
    display: block;
    padding: 0 4px;
}


#logo img {
    margin-bottom: -30px;
    margin-left: -2px;
    margin-top: -20px;

}

#content {
    padding-bottom: 40px;
    padding-left: 0;
    padding-right: 0;
    padding-top: 0px;
    position: relative;
}



.entry img, img.thumbnail {
  background: none;
  border: medium none;
  padding: 5px;
}
 

#loopedSlider a.prev:before, #loopedSlider a.next:before, #post-gallery .pagination .jcarousel-prev:before, #post-gallery .pagination .jcarousel-next:after {
    color: transparent;
    position: absolute;
 }

#loopedSlider .container {
    overflow: hidden;
    position: relative;
    margin: 0px 0 0px 0;
}

#loopedSlider {
    margin: 0 auto 0px;
    padding: 0;
    position: relative;
}

.post-meta a:link, .post-meta a:visited, .post p.tags a:link, .post p.tags a:visited {
    color: #000000;
    font-weight: bold;
}
a:hover, .post-more a:hover, .post-meta a:hover, .post p.tags a:hover {
    color: #FFFFFF;
}

.gfield {
  margin-bottom:0px;
  margin-top: 0px;
}
.gform_wrapper .gform_footer {
    clear: both;
    margin: 0px 0 0;
    padding: 0px 0 0px;
}
.gform_wrapper .top_label .gfield_label {
    display: inline;
  }

.gform_wrapper .top_label input.large, .gform_wrapper .top_label select.large, .gform_wrapper .top_label textarea.textarea {
    height: 100px;
    padding-bottom: 5px !important;
    padding-left: 3px !important;
    padding-right: 3px !important;
    padding-top: 5px !important;
    width: 300px !important;
}

.archive_header {
    border-bottom: 1px solid #E6E6E6;
    display: none;
}

div.post {
    background: none repeat scroll 0 0 #b8b8b8;
}


div.post  {
background: #e1e0de;
padding: 10px;
-moz-box-shadow: 5px 5px 10px 0px #444444;
-webkit-box-shadow: 5px 5px 10px 0px #444444;
}

.post-meta {
    color: #000000;
}

.post-more .sep {
    color: #000000;
    padding: 0 0.5em;
}

.entry img, img.thumbnail {
-moz-box-shadow:  5px 5px 10px 0px #444444;
-webkit-box-shadow:  5px 5px 10px 0px #444444;
 -khtml-box-shadow:  5px 5px 10px 0px #444444;
box-shadow:  5px 5px 10px 0px #444444;
}


.textwidget {
    background: none repeat scroll 0 0 #EC9ABB;
    color: #FAFAFA;
    font: 12px/1.5em "Helvetica Neue",Helvetica,sans-serif;
    padding: 10px;
}

.ngg-gallery-thumbnail img {
    background-color: transparent;
    border: 0px;
    padding: 0px;
    position: relative;
}

.entry img, img.thumbnail {
  background-color:rgba(255, 255, 255, 0.699219);
  background-position:initial initial;
  background-repeat:initial initial;
  border:0 solid #E6E6E6;
  height:auto;
  padding:0;
}



#navigation .nav li.parent > a:after {
    -moz-border-bottom-colors: none;
    -moz-border-image: none;
    -moz-border-left-colors: none;
    -moz-border-right-colors: none;
    -moz-border-top-colors: none;
    border-color: #CCCCCC transparent transparent;
    border-style: solid;
    border-width: 0.3em;
    content: "";
    display: none;
    position: absolute;
    right: 14.88px;
    top: 40%;
}

#navigation .nav li.parent > a {
    padding-right: 0;
    position: relative;
}


#navigation ul.nav li ul {
    border: 0 solid #DBDBDB;
    margin: -15% 0 0;
}

#topad {
    float: right;
    margin-bottom: 0;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0;

}


 .background-color {
          background-color: rgb(255,0,0);
          background-color: rgba(255,0,0,0.5);
        }