errors with installing gd library

[php_beginner_83]

Hi All

I'm trying to install the gd library. I previously had php installed and working just fine until I wanted to use the imagecreatefromjpeg() method. I looked online and found that if I wanted to use this I needed the gd library. I looked in my php.ini file and there wasn't a gd.dll line to uncomment, like websites had suggested I do to use this library.
So I got a more recent version of php, I uncommented the gd2.dll in the php.ini file. I checked that it was installed by running <?php phpinfo() ?> and it said the gd library was enabled.
However, when I try and run this code..
<? php
$imagepath="ireland_outline.jpg";
$image=imagecreatefromjpeg($imagepath);
header('Content-Type: image/jpeg');
imagejpeg($image);
?>

This is what I get on screen..........
Qa"q2‘¡#B±ÁRÑð$3br‚ %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyzƒ„…†‡ˆ‰Š’“”•–—˜™š¢£¤¥¦§¨©ª²³´µ¶·¸¹ºÂÃÄÅÆÇÈÉÊÒÓÔÕÖ×ØÙÚáâãäåæçèéêñòóôõö

Can anyone help and guide me through how to get it working properly.
I'm using php 5.2.8 and have windows vista.

Thanks much!

[php_beginner_83]

Actually the output on screen is..

Warning: Cannot modify header information - headers already sent by ...
&#255;&#216;&#255;&#224;JFIF&#255;&#254;>CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), default quality &#255;&#219;C $.' ",#(7),01444'9=82<.342&#255;&#219;C 2!!22222222222222222222222222222222222222222222222222&#255;&#192;&#376;"&#255;&#196; &#255;&#196;&#181;}!

Thanks again for your help. I've just recently started trying to use apache and php and I'm so lost.

[bradgrafelman]

What you see is the binary data of an image, so the gd library seems to be working as expected.

What you need to do is fix the error that PHP is reporting. You'll want to examine the full error message as something in your script is outputting data before the header() call. Search the board for "headers already sent" and you should see a plethora of topics/posts regarding how to fix this type of error.