IE9 and Round Corners

[cla1067]

Happy they finally added this feature, but anyways I am able to get it to work with everything on my site, but the navigation bar. I have tested the site in firefox and safari and everything works.

I am trying to make the corners at the bottom of the navigation bar round.

http://stupidwhitekid.com

#nav {
    padding:0;
    margin: 0 0 10px 0;
    list-style:none;
    height:33px;
    background: url('./images/nav/0.png') repeat-x;
    position:relative;
    z-index:200;
    font-family: arial, verdana, sans-serif;
    -moz-border-radius-bottomleft:10px;
    -moz-border-radius-bottomright:10px;
    -webkit-border-bottom-left-radius: 10px;
    -webkit-border-bottom-right-radius: 10px;
    -border-bottom-left-radius: 10px;
    -border-bottom-right-radius: 10px;
} 

.preload1 {
background: url('./images/nav/0a.png');
}
.preload2 {
background: url('./images/nav/1a.png');
}
#nav {
    padding:0;
    margin: 0 0 10px 0;
    list-style:none;
    height:33px;
    background: url('./images/nav/0.png') repeat-x;
    position:relative;
    z-index:200;
    font-family: arial, verdana, sans-serif;
    -moz-border-radius-bottomleft:10px;
    -moz-border-radius-bottomright:10px;
    -webkit-border-bottom-left-radius: 10px;
    -webkit-border-bottom-right-radius: 10px;
    -border-bottom-left-radius: 10px;
    -border-bottom-right-radius: 10px;
}

#nav li.top1 {
   display:block;
   float: left;
   margin-left:14px;
}

#nav li.top {
   display:block;
   float: left;
}

#nav li a.top_link {
   display:block;
   float: left;
   height:33px;
   line-height:31px;
   color:#8FFFFD;
   background: url('./images/nav/0.png');
   text-decoration:none;
   font-size:14px;
   font-weight:bold;
   padding:0 0 0 12px;
   cursor:pointer;
}

#nav li a.top_link span {
   display:block;
   float: left;
   padding:0 24px 0 12px;
   height:33px;
   background: url('./images/nav/0.png') right top no-repeat;
}

#nav li a.top_link span.down {
   display:block;
   float: left;
   padding:0 24px 0 12px;
   height:33px;
   background: url('./images/nav/0a.png') no-repeat right top;
}

#nav li:hover a.top_link,
#nav a.top_link:hover {
   color:#009FD9;
   background: url('./images/nav/1.png') no-repeat;
}

#nav li:hover a.top_link span, 
#nav a.top_link:hover span {
   background: url('./images/nav/1.png') no-repeat right top;
}

#nav li:hover a.top_link span.down,
#nav a.top_link:hover span.down {
   background: url('./images/nav/1a.png') no-repeat right top;
   padding-bottom:3px;
}

#nav table {
   border-collapse:collapse;
   padding:0;
   margin:0;
   position:absolute;
   left:0;
   top:0;
}

#nav li:hover {
   position:relative;
   z-index:200;
}

#nav a:hover {
   position:relative;
   white-space:normal;
   z-index:200;
}

#nav :hover ul.sub {
   left:1px;
   top:34px;
   background-color: #000;
   -moz-opacity:0.8;
   -khtml-opacity: 0.8;
   opacity: 0.8;
   padding:3px;
   border: 1px solid #FFF;
   white-space:nowrap;
   width:185px;
   height:auto;
   z-index:300;
   font-weight:bold;
}

#nav :hover ul.sub li {
   display:block;
   float: left;
   height:20px;
   position:relative;
   width:185px;
   font-weight:bold;
}

#nav :hover ul.sub li a {
   display:block;
   font-size:11px;
   height:18px;
   width:183px;
   line-height:18px;
   text-indent:5px;
   color:#F5F5F5;
   text-decoration:none;
   font-weight:bold;
}

#nav li ul.sub li a.fly {
   background: url('./images/nav/arrow_over.png') 175px 6px no-repeat;
}

#nav :hover ul.sub li a:hover {
   color:#F5F5F5;
   background-color: #FFF;
   border-color:#FFF;
   font-weight:bold;
}

#nav :hover ul.sub li a.fly:hover {
   background: #FFF url('./images/nav/arrow.png') 175px 6px no-repeat;
   color:#F5F5F5;
}

#nav li b {
   display:block;
   font-family:Comic Sans MS,Sans-Serif;
   font-size:12px;
   height:18px;
   width:183px;
   line-height:18px;
   margin-bottom:3px;
   text-indent:6px;
   color:#274F9E;
   border-bottom:1px solid #D10800;
   cursor:default;
}

#nav a:hover a:hover ul,
#nav a:hover a:hover a:hover ul,
#nav a:hover a:hover a:hover a:hover ul,
#nav a:hover a:hover a:hover a:hover a:hover ul {
   left:89px;
   top:-4px;
   padding:3px;
   border:1px solid #000;
   white-space:nowrap;
   width:183px;
   z-index:400;
   height:auto;
}

#nav ul, 
#nav a:hover ul ul,
#nav a:hover a:hover ul ul,
#nav a:hover a:hover a:hover ul ul,
#nav a:hover a:hover a:hover a:hover ul ul {
   position:absolute;
   left:-9999px;
   top:-9999px;
   width:0;
   height:0;
   margin:0;
   padding:0;
   list-style:none;
}

#nav li:hover li:hover > ul {
   left: 183px; /* distance from right margin of main drop */
   top: -4px;
   background-color: #000;
   padding: 3px;
   border: 1px solid #FFF;
   white-space: nowrap;
   width: 185px; /* width of secondary drop */
   z-index: 400;
   height: auto;
}

#nav li:hover > ul ul {
   position:absolute;
   left:-9999px;
   top:-9999px;
   width:0;
   height:0;
   margin:0;
   padding:0;
   list-style:none;
}

#nav li:hover li:hover > a.fly {
   background: #FFF url('./images/nav/arrow.png') 175px 6px no-repeat; 
   color:#F5F5F5;
   font-weight: bold;
   text-decoration:none;
} 

#nav li:hover li:hover > li a.fly {
   background: #FFF url('./images/nav/arrow.png') 175px 6px no-repeat;
   color:#F5F5F5;
   font-weight: bold;
   text-decoration:none;
} 

Thanks!