Index: trunk/ppImage/src/ppImageDetrendFringe.c
===================================================================
--- trunk/ppImage/src/ppImageDetrendFringe.c	(revision 37406)
+++ trunk/ppImage/src/ppImageDetrendFringe.c	(revision 42382)
@@ -327,7 +327,6 @@
     pmCell *cell = NULL;
 
-    // psTimerStart("apply.fringe");
-
-    assert (options->doFringe); // do not call if not needed
+    if (!options->doFringe) return true;
+
     assert (inputView->chip != -1);
     assert (inputView->cell == -1);