Alingment Problem on Table in diffrent Browsers RSS

Hi All,

This is my sample design

<table cellpadding="0" cellspacing="0" border="0" width="100%" align="center">
 <tr>
    <td>
        <table cellpadding="0" cellspacing="0" border="0" width="80%" align="center">
         <tr>
           <td>
                ***** SOME NONSENSE HERE *****
           </td>
         </tr>
        </table>
    </td>
 </tr>
</table>

If i run this It works fine in IE exact Center it is coming
Where as if i run in Mozilla & Chrome It is not getting at center?
What is the reason behind this?
Can any body solve this query?

Thanks In Advance,
VenkateshDesaiK.