Index: trunk/ippScripts/scripts/detrend_resid_exp.pl
===================================================================
--- trunk/ippScripts/scripts/detrend_resid_exp.pl	(revision 23688)
+++ trunk/ippScripts/scripts/detrend_resid_exp.pl	(revision 24764)
@@ -79,4 +79,7 @@
     defined $outroot;
 
+# force det_type to be upper-case in this script
+$det_type = uc($det_type);
+
 # load IPP config information for the specified camera
 my $ipprc = PS::IPP::Config->new( $camera ) or my_die( "Unable to set up", $det_id, $iter, $exp_id, $PS_EXIT_CONFIG_ERROR ); # IPP configuration
@@ -87,5 +90,5 @@
 $reduction = 'DETREND' unless defined $reduction;
 
-my $recipe = $ipprc->reduction($reduction, uc($det_type) . '_JPEG_RESID'); # Recipe to use
+my $recipe = $ipprc->reduction($reduction, $det_type . '_JPEG_RESID'); # Recipe to use
 &my_die("Unrecognised detrend type: $det_type", $det_id, $iter, $PS_EXIT_PROG_ERROR) unless defined $recipe;