SORRY for wasting your time, but after 10 minutes I already solved it. WEIRD because I never understood that error had a great impact.

below is my new grid.php code

===================================

<?php

$db = mysql_connect('localhost:3307', 'root', 'root')
or die(“Connection Error: ” . mysql_error());

mysql_select_db('ipiwms') or die(“Error conecting to db.”);

$SQL = “SELECT no, order, serve, item FROM book”;
$result = mysql_query( $SQL ) or die(“Couldn t execute query.”.mysql_error());

$i=0;
while($row = mysql_fetch_array($result,MYSQL_ASSOC)) {