Hover mit Css in Table, aber Hintergrundgrafik lädt nicht

[Nick]

Meine CSS-Angaben

<style type="text/css">
<!--
a:active {  font-family: Arial, Helvetica, sans-serif; font-style: normal; line-height: normal; font-weight: normal; text-decoration: underline; color: #000000}
a:hover {  font-family: Arial, Helvetica, sans-serif; font-style: normal; line-height: normal; font-weight: normal; color: #990000; text-decoration: underline; font-variant: normal}
a:link {  font-family: Arial, Helvetica, sans-serif; font-style: normal; line-height: normal; font-weight: normal; font-variant: normal; color: #000000; text-decoration: underline}
a:visited {  font-family: Arial, Helvetica, sans-serif; font-style: normal; line-height: normal; font-weight: normal; font-variant: normal; text-decoration: underline}
-->
</style>

Der Content in meiner Table

<table border="0" cellspacing="0" cellpadding="0" topmargin="0" marginheight="0" width="82" dwcopytype="CopyTableRow">
        
      
        <tr>
          
<td align="right" height="11" width="1" bgcolor="#CCCCCC"> </td>
          
<td align="right" height="11" width="3" bgcolor="#CCCCCC"><img src="images/dot.gif" width="3" height="3"></td>
          
<td align="right" height="11" width="1" bgcolor="#CCCCCC"> </td>
          
<td height="11" width="95" background="images/bg.gif"><font size="1" face="Arial, Helvetica, sans-serif"><a href="index.html">PKW</a></font></td>
        </tr>
        
        
      </table>