I have background images working properly in 'almost' all outlook 2013 recipients using the bulletproof background's vml. Preview in Litmus shows fine. However, several recipients see background image out of alignment.

I optimized the Outlook image, and am sure it's loading. Any thoughts? Are there settings in Outlook that may be rendering differntly?

<table style=" border:0; border-collapse:collapse; border-spacing: 0; width:600px" border="0" cellspacing="0" cellpadding="0" width="600" height="562">
      <tr>
             <td background="https://6046691fe7681fd1f970-76a33aae5fb6fbdb7b4626a8020a81cd.ssl.cf2.rackcdn.com/picnic_84.jpg" width="600" height="502" valign="top" >
    <!--[if gte mso 9]>
  <v:rect xmlns:v="urn:schemas-microsoft-com:vml" fill="true" stroke="false" style="width:600px;height:567px;">
    <v:fill type="frame" src="https://6046691fe7681fd1f970-76a33aae5fb6fbdb7b4626a8020a81cd.ssl.cf2.rackcdn.com/picnic-min_87.jpg"/>
    <v:textbox inset="0,0,0,0">
  <![endif]-->
  <div>