Borders

[Andy]

The borders on the tables on my site aren't playing nice.
Dreamweavers' browser-check thinger is telling me I havent coded the border properties right, and the odd line is showing up black, and not 'clear', as I so desire.

Can someone inform me as to the correct way to code 'em?

<table width="100%" height="100%" border="0" align="center">
  <tr> 
    <td><div align="center"> 
        <table width="300" border="0" cellpadding="5" style="border-width: 0">
          <tr> 
            <td height="86" style="border-style:none; border-width:medium; "> 
              <div align="right"></div>
              <table border="1" cellpadding="0" cellspacing="0" style="border-width:0; border-collapse: collapse" bordercolor="#111111" width="18%" height="22">
                <tr>
                  <td width="100%" height="19" style="border-style: none; border-width: medium">
                    <p align="center"><img border="0" src="top.jpg" width="281" height="26" /></p></td>
                </tr>
                <tr>
                  <td width="100%" height="19" style="border-style: none; border-width: medium">
                    #SITE NAVIGATION#
                </tr>
                <tr>
                  <td width="100%" height="19" style="border-style: none; border-width: medium"> <img border="0" src="bottom.jpg" width="281" height="20" /></td>
                </tr>
              </table>              </td>
          </tr>
        </table>
      </div></td>
  </tr>
</table>