background imag not showing in ie

I am currently building a new site from the classic template and I put in a background image of a dotted line to separate the sidebar from the content. However, the dotted image does not show in ie. What can I do?

heres the css code;
margin: 30px 13em 0 3em;
padding-right: 312px;
position:relative;
left:156px;
background-image:url(‘images/divider.jpg’);