Menu Colors not working in IE, Internet Explorer

I’ve seen this topic before in the forums but never saw how to get it resolved. I have changed my background colors for both my menu and my call to action button. It seems to work in Firefox and Chrome but I don’t see the changes in IE. I am running IE 9 on vista. Can you help?

https://0394db5.netsolhost.com/munsoninc/

.menu {
background-color: #006400;
background: url(‘https://0394db5.netsolhost.com/munsoninc/wp-content/uploads/2014/03/mainmenu1.png’) repeat-x scroll 0 0 transparent;
margin: 0 auto;
}

.menu .current_page_item a, .menu .current-menu-item a {
background-color: #006400;
}

here is the call to action button
a.green {
background-color: #2E8B57;
background: url(‘https://0394db5.netsolhost.com/munsoninc/wp-content/uploads/2014/03/mainmenu1.png’) repeat-x scroll 0 0 transparent;
border: 1px solid #1D5837;
}

I used gradient color before and it only worked in Firefox, this way it works in both FF and Chrome. But still not in IE.