Paypal IPN puts garbage on page on return to cart

[kelvyn]

When checking out via Paypal, the page layout is messed up (not the correct stylesheet) and this text appears at the top of the page:

$idev = $db->Execute("select * from " . TABLE_ORDERS_TOTAL . " where orders_id = '".(int)$orders->fields['orders_id']."' AND class = 'ot_subtotal'"); $idev_saleamt = (number_format($idev->fields['value'],2)); $idev_ordernum = $idev->fields['orders_id']; print "";

I can't find anyone else with this problem here, so I guess it must be just me, but I can't figure it out.

[Merlinpa1969]

looks like you need to add
<?php and ?> arount the idev tracking code in your tpl_header.php