[ericgtr]

Yes, change it to this, you may define any background color you like

<!-- Digg -->
<td class="vbmenu_control" id="digg" nowrap="nowrap">
<script type="text/javascript">
digg_url = 'SITE URL/showthread.php?t=$thread[threadid]';
digg_title = "$threadinfo[title]";
digg_bgcolor = '#ffffff';
digg_skin = 'compact';
digg_window = 'new';
</script>
<script src="http://digg.com/tools/diggthis.js" type="text/javascript"></script>
</td>
<!-- / Digg -->

Please click install if you use it.