Index: trunk/ippScripts/scripts/detrend_resid.pl
===================================================================
--- trunk/ippScripts/scripts/detrend_resid.pl	(revision 11442)
+++ trunk/ippScripts/scripts/detrend_resid.pl	(revision 11455)
@@ -146,5 +146,5 @@
 	run(command => $command, verbose => 1);
     unless ($success) {
-	$error_code = $error_code >> 8;
+	$error_code = (($error_code >> 8) or $PS_EXIT_PROG_ERROR);
 	&my_die("Unable to perform ppImage: $error_code", $det_id, $iter, $exp_tag, $class_id, $error_code);
     }
@@ -191,5 +191,5 @@
 	run(command => $command, verbose => 1);
     unless ($success) {
-	$error_code = $error_code >> 8;
+	$error_code = (($error_code >> 8) or $PS_EXIT_PROG_ERROR);
 	warn("Unable to perform dettool -addresidimfile: $error_code\n");
 	exit($error_code);