ok, so it doesn't work with the way if inserted the image.
but is there another solution how I can insert the image?
I'm not familiar with these topics....
I just deleted the
<?php header('Content-Type: image/jpeg')?>
and
<DIV id="arguslogo1">
<img src="lib/images/arguslogo1.jpg" align="right" vspace="10" hspace="10"">
</DIV>
<?php
$myImage = imagecreatefromjpeg('arguslogo1.jpg');
header("Content-type: image/jpeg");
imagejpeg($myImage);
imagedestroy($myImage);
?>
in my main.php...
so it works now. I've done sth wrong with this. but I need the logo there...