Why am I getting an empty space of approx 2-3 pixels just below the picture.. between the picture and border




<table width="100%" cellpadding="0" cellspacing="0">
  <tr>
      <td>
              <br>     <br>

              <table border="1" width="750" cellspacing="5" cellpadding="0" align="center" bgcolor="white">
           <tr>
           <td>

        <table width="100%" border="0" bgcolor="white" width="750" cellpadding="0" cellspacing="0">
  <tr>

        <td cellpadding="0" cellspacing="0">
        <img src="2.gif" width="150" height="110" vspace="0" align="bottom">
        </td>
  </tr>
      </table>