Index: trunk/ippconfig/recipes/ppStack.config
===================================================================
--- trunk/ippconfig/recipes/ppStack.config	(revision 26446)
+++ trunk/ippconfig/recipes/ppStack.config	(revision 26455)
@@ -2,4 +2,6 @@
 
 CONVOLVE	BOOL	TRUE		# Convolve images when stacking?
+MATCH.ZERO.POINTS BOOL	TRUE		# Convolve images when stacking?
+
 COMBINE.ITER	F32	0.5		# Number of rejection iterations per input
 COMBINE.REJ	F32	2.5		# Rejection threshold in combination (sigma)
@@ -77,6 +79,7 @@
 # Faster processing for PR images
 PR	METADATA
-	CONVOLVE	BOOL	FALSE
-	IMAGE.REJ	F32	0.5	
-	SKIP.BG.SUB	BOOL	FALSE
+	IMAGE.REJ	    F32	  0.5	
+	CONVOLVE	    BOOL  FALSE
+	SKIP.BG.SUB	    BOOL  FALSE
+        MATCH.ZERO.POINTS   BOOL  FALSE
 END