What's wrong with this GD?

[Barrucadu]

edit2: fixed, and I dont know why, lol.

----- original post -----
edit: I have found the problem, its not sending the header, any ideas why?

----- original post -----

I just get this:

The image “http://localhost:1024/home/images/online.php” cannot be displayed, because it contains errors.

Here is my code:

<?php

header("Content-type: image/gif")or die("Could not send header.");
putenv('GDFONTPATH=' . realpath('.'))or die("Could not set environmental variable.");

$text = array();
$text[0] = 'Server Software: Abyss Web Server X1';
$text[1] = 'Server Uptime: ' . $_SERVER['X_ABYSS_STATS_SERVER_UPTIME'];
$text[2] = 'Server Output: ' . $_SERVER['X_ABYSS_STATS_SERVER_OUTPUT'] . ' bytes';

$image = array();
$image['font_size'] = 10;
$image['font_angle'] = 0;
$image['font_file'] = 'trebuchet_ms';
$image['text_x'] = 10;
$image['text_y'] = 10;
$image['text_colour'] = imagecolorallocate($im, 13, 28, 51)or die("Could not allocate text colour.");

$im = imagecreatefromgif("images/online.gif")or die("Could not initialize GD stream");

$y = $image['text_y'];

foreach($text as $line){
	imagettftext($im, $image['font_size'], $image['font_angle'], $image['font_x'], $y, $image['text_colour'], $image['font_file'], $line)or die("Could not append text to image");
	$y = $y + 15;
}

imagegif($im)or die("Could not send image.");
imagedestroy($im)or die("Could not destroy image");

?>