Index: trunk/psphot/src/psphotSetThreads.c
===================================================================
--- trunk/psphot/src/psphotSetThreads.c	(revision 35559)
+++ trunk/psphot/src/psphotSetThreads.c	(revision 35769)
@@ -5,6 +5,18 @@
     psThreadTask *task = NULL;
 
+    pmPSFThreads ();
+
+    task = psThreadTaskAlloc("PSPHOT_MODEL_BACKGROUND", 15);
+    task->function = &psphotModelBackground_Threaded;
+    psThreadTaskAdd(task);
+    psFree(task);
+
     task = psThreadTaskAlloc("PSPHOT_GUESS_MODEL", 5);
     task->function = &psphotGuessModel_Threaded;
+    psThreadTaskAdd(task);
+    psFree(task);
+
+    task = psThreadTaskAlloc("PSPHOT_ADD_NOISE", 6);
+    task->function = &psphotAddOrSubNoise_Threaded;
     psThreadTaskAdd(task);
     psFree(task);
@@ -40,5 +52,5 @@
     psFree(task);
 
-    task = psThreadTaskAlloc("PSPHOT_EXTENDED_FIT", 18);
+    task = psThreadTaskAlloc("PSPHOT_EXTENDED_FIT", 16);
     task->function = &psphotExtendedSourceFits_Threaded;
     psThreadTaskAdd(task);