Very weird... Today the script looked different in my Internet Explorer

If the lines in Internet Explorer are getting too fat:
[includes/reviews_show.inc.php][find] (2x)
<hr noshade size="1">
[/find]
[modify] (2x)
<hr size="1">
[/modify]
[/includes/reviews_show.inc.php]If you're getting a linebreak too much in Internet Explorer:
[details.php][remove]
<?php // Add an extra linebreak if browser is IE
$br = "";
$IE_check = "yes";
$IE = "MSIE";
while ($IE_check == "yes") {
$pos = strpos($_SERVER['HTTP_USER_AGENT'],$IE);
if($pos === false) {
$IE_check = "no";
}
else {
$br = "<br />";
$IE_check = "no";
}
}
?>
[/remove]
[find]
echo $br.'<br /><a href="index.php?page=details&prod='.$row[0].'&cat='.$row[2].'&action=showreviews#show">'.$txt['comments7'].'</a>';
[/find]
[modify] (2x)
echo '<br /><a href="index.php?page=details&prod='.$row[0].'&cat='.$row[2].'&action=showreviews#show">'.$txt['comments7'].'</a>';
[/modify]
[find]
echo $br.'<a href="index.php?page=details&prod='.$row[0].'&cat='.$row[2].'&action=hidereviews#reviews">'.$txt['comments24'].'</a>'.$br2;
[/find]
[modify] (2x)
echo '<a href="index.php?page=details&prod='.$row[0].'&cat='.$row[2].'&action=hidereviews#reviews">'.$txt['comments24'].'</a>'.$br;
[/modify]
[find]
$br2 = "";
if ($action == "showreviews" || $action == "delete") {
$br2 = "";
$br2 = "<br />";
[/find]
[modify] (2x)
$br = "";
if ($action == "showreviews" || $action == "delete") {
$br = "";
$br = "<br />";
[/modify]
[/details.php]