Posto il codice perche non riesco a capire dove sbaglio:

<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=iso-8859-1">

<title>Prova</title>
</head>

<body bgcolor="#ffffff" leftmargin="0" marginheight="0" marginwidth="0" topmargin="0">
<div align="center">
<table width="770" border="0" cellspacing="0" cellpadding="0" bgcolor="#f0e68c" cool gridx="16" gridy="16" height="800" showgridx showgridy usegridx usegridy>
<tr height="799">
<td width="769" height="799"><spacer type="block" width="769" height="799"></td>
<td width="1" height="799"><spacer type="block" width="1" height="799"></td>
</tr>
<tr height="1" cntrlrow>
<td width="769" height="1"><spacer type="block" width="769" height="1"></td>
td width="1" height="1"><spacer type="block" width="1" height="1"></td>
</tr>
</table>
</div>
</body>

</html>



grazie ancora!