Background image not showing in IE9 only

Question

The grey image (GreyBack.jpg) around the 9 centered product images on this site are not displaying in only IE9:
www.Deltron.com
Screenshot here: http://deltron.com/images/deltron-shot.jpg
It works perfectly in IE7, IE8, FF, Safari, and Chrome.
Any ideas?
Here is the CSS for that section:
.RoundedBox {
width: 479px;
padding: 10px;
border: 1px solid #E4E4E4;
-moz-border-radius: 20px;
-webkit-border-radius: 20px;
border-radius: 20px;
behavior: url(border-radius.htc);
margin-top: 0;
margin-right: auto;
margin-bottom: 0px;
margin-left: auto;
background-image: url('images/GreyBack.jpg');
And the HTML:
<div class="RoundedBox">
      <p><img src="images/BannerHome.jpg" width="350" height="28" alt="Deltron Precision Product Line-up" /></p>
    <table width="73%" border="0" align="center" cellpadding="0" cellspacing="0">
      <tr>
        <td width="30%"><a href="javascript:;" onmouseover="MM_swapImage('Image20','','images/linear_slide_crossed_roller_bearings2.jpg' ,1)" onmouseout="MM_swapImgRestore()"><img src="images/linear_slide_crossed_roller_bearings1.jpg" alt="Linear Slides Ball Slides Crossed Roller Slides" width="153" height="148" border="0" id="Image20" onclick="MM_goToURL('parent','Linear_Slides_Ball_Slides_Crossed_Roller_Slides.html');retu rn document.MM_returnValue" /></a></td>
        <td width="2%"> </td>
        <td width="29%"><a href="javascript:;" onmouseover="MM_swapImage('Image21','','images/positioning_stages2.jpg',1)" onmouseout="MM_swapImgRestore()"><img src="images/positioning_stages1.jpg" alt="Micrometer Positioning Stages" width="153" height="148" border="0" id="Image21" onclick="MM_goToURL('parent','Micrometer_Positioning_Stages.html');return document.MM_returnValue" /></a></td>
        <td width="3%"> </td>
        <td width="34%"><a href="javascript:;" onmouseover="MM_swapImage('Image26','','images/cross_roller_bearings2.jpg',1)" onmouseout="MM_swapImgRestore()"><img src="images/cross_roller_bearings1.jpg" alt="Linear Bearings Crossed Roller Tables" width="153" height="148" border="0" id="Image26" onclick="MM_goToURL('parent','Linear_Bearings_Crossed_Roller_Tables.html');return document.MM_returnValue" /></a></td>
      </tr>
      <tr>
        <td><a href="javascript:;" onmouseover="MM_swapImage('Image28','','images/linear_actuators2.jpg',1)" onmouseout="MM_swapImgRestore()"><img src="images/linear_actuators1.jpg" alt="Linear Actuators Lead Screw Actuators" width="153" height="148" border="0" id="Image28" onclick="MM_goToURL('parent','Linear_Actuators_Lead_Screw_Actuators.html');return document.MM_returnValue" /></a></td>
        <td><img src="images/spacer.gif" alt="" width="10" height="20" /></td>
        <td><a href="javascript:;" onmouseover="MM_swapImage('Image27','','images/non-magnetic-slides2.jpg',1)" onmouseout="MM_swapImgRestore()"><img src="images/non-magnetic-slides1.jpg" alt="Non Magnetic Slides" width="153" height="148" border="0" id="Image27" onclick="MM_goToURL('parent','Non_Magnetic_Slides.html');return document.MM_returnValue" /></a></td>
        <td><img src="images/spacer.gif" alt="" width="10" height="20" /></td>
        <td><a href="javascript:;" onmouseover="MM_swapImage('Image23','','images/lead_screw_actuators2.jpg',1)" onmouseout="MM_swapImgRestore()"><img src="images/lead_screw_actuators1.jpg" alt="Lead Screw Actuators Lead Screw Stages" width="153" height="148" border="0" id="Image23" onclick="MM_goToURL('parent','Lead_Screw_Actuators_Lead_Screw_Stages.html');return document.MM_returnValue" /></a></td>
      </tr>
      <tr>
        <td><a href="javascript:;" onmouseover="MM_swapImage('Image22','','images/crossed_roller_bearings2.jpg',1)" onmouseout="MM_swapImgRestore()"><img src="images/crossed_roller_bearings1.jpg" alt="Crossed Roller Bearings Crossed Roller Rails" width="153" height="148" border="0" id="Image22" onclick="MM_goToURL('parent','Crossed_Roller_Bearings_Crossed_Roller-Rails.html');return document.MM_returnValue" /></a></td>
        <td> </td>
        <td><a href="javascript:;" onmouseover="MM_swapImage('Image25','','images/slide_guides2.jpg',1)" onmouseout="MM_swapImgRestore()"><img src="images/slide_guides1.jpg" alt="Slide Guides" width="153" height="148" border="0" id="Image25" onclick="MM_goToURL('parent','Slide_Guides.html');return document.MM_returnValue" /></a></td>
        <td> </td>
        <td><a href="javascript:;" onmouseover="MM_swapImage('Image24','','images/belt_drives2.jpg',1)" onmouseout="MM_swapImgRestore()"><img src="images/belt_drives1.jpg" alt="Belt Drive Actuators Linear Actuators" width="153" height="148" border="0" id="Image24" onclick="MM_goToURL('parent','Belt_Drive_Actuators_Linear_Actuators.html');return document.MM_returnValue" /></a></td>
      </tr>
    </table>
</div>
Thank you!
Matt

Answer 1

Thanks for the replies Nancy O. and Murray.
It's been so long since I did this hack (for FireFox), I don't remember anything about it.
I believe I should delete lines 80 & 81, and leave everything else, right?:
-moz-border-radius: 20px;
-webkit-border-radius: 20px;
Is there anything else I need to do?
Murray, where did you get this code?:
Murray *ACP* wrote:
Yes - this is the result of that hack:
<div class="RoundedBox v08vnSVo78t4JfjH" style="border-top-color: transparent; border-right-color: transparent; border-bottom-color: transparent; border-left-color: transparent; background-image: none; background-attachment: scroll; background-repeat: repeat; background-position-x: 0%; background-position-y: 0%; background-size: auto; background-origin: padding-box; background-clip: border-box; background-color: transparent;">
Dump it!
Thanks again, both of you!
Matt