This line does not execute...

I am trying to get the Sample Barcode to run on my server, however the following line does not execute: echo "<table align='center'><tr><td><img src='./image.php?code=" . $barcode . "&style=" . $style . "&type=" . $type . "&width=" . $width . "&height=" . $height . "&xres=" . $xres . "&font=" . $font . "'></td></tr></table>"; To see if it is executing, I have an "Echo" statement in the script. The image.php file is in the same directory as the other script files. What am I missing here? Todd --