Evil tables!

[R.a.B.B.i.T]

Okay, so here's the problem (it's writtin in PHP...so..whatever):
My code (below) to display a entries in a table is fine..I think. When I view the page in Firefox, it's good, BUT when I refresh, with no changes having been made, the bottom 2 (I only have 3 entries at the moment) tables take up 100% width, instead of 80%. The source says 80% as width, however. Now, when I tried this in Internet Explorer, they stayed the same, all fine and dandy. Anyone know what's going on?

  $i=0;
  $query=mysql_query("SELECT * FROM packagestable") or die(mysql_error());
  $num=mysql_num_rows($query);
  //echo "\n<br \><br \>";
  while($i<$num)
  {
    $title=mysql_result($query,$i,"title");
    $author=mysql_result($query,$i,"author");
    $descr=mysql_result($query,$i,"description");
    $price=mysql_result($query,$i,"price");
    $lang=mysql_result($query,$i,"language");
    echo "\n\n\n<center \><table width=80% border=1 cellpadding=2 cellspacing=1 \>\n";
    echo "<tr \><td \><font face=verdana size=1 \>Package Name:</td \>\n";
    echo "<td ><font face=verdana size=1 \>" . $title . "</td \></tr \>\n";
    echo "<tr \><td \><font face=verdana size=1 \>Programmer(s):</td \>\n";
    echo "<td ><font face=verdana size=1 \>" . $author . "</td \></tr \>\n";
    echo "<tr \><td \><font face=verdana size=1 \>Language(s):</td \>\n";
    echo "<td ><font face=verdana size=1 \>" . $lang . "</td \></tr \>\n";
    echo "<tr \><td \><font face=verdana size=1 \>Price:</td \>\n";
    echo "<td ><font face=verdana size=1 \>". $price . "</a ></td \></tr \>\n";
    echo "<tr \><td \><font face=verdana size=1 \>Description:</td \>\n";
    echo "<td ><font face=verdana size=1 \>". $descr . "</td \></tr \>\n";
    echo "<tr \><td \><font face=verdana size=1 \>Order:</td \>\n";
    echo "<td ><a href=\"mailto:[email protected]?subject=Order" . $i . "\" \>Order Me </td \></tr \>\n";
    echo "</table \></center \><br \><br \><br \>\n";
    $i++;
  }
  echo "\n";