Index: trunk/ippconfig/vysos20/ppImage.config
===================================================================
--- trunk/ippconfig/vysos20/ppImage.config	(revision 26024)
+++ trunk/ippconfig/vysos20/ppImage.config	(revision 26265)
@@ -69,9 +69,9 @@
   CHIP.MASK.FITS   BOOL    TRUE            # Save chip-mosaic-ed image? 
   CHIP.VARIANCE.FITS BOOL  TRUE            # Save chip-mosaic-ed image? 
-  OVERSCAN         BOOL    TRUE            # Overscan subtraction
-  BIAS             BOOL    TRUE            # Bias subtraction
+  OVERSCAN         BOOL    FALSE           # Overscan subtraction
+  BIAS             BOOL    TRUE            # XXX : use dark as bias for now
   DARK             BOOL    FALSE           # Dark subtraction
   SHUTTER          BOOL    FALSE           # Shutter correction
-  FLAT             BOOL    TRUE            # Flat-field normalisation
+  FLAT             BOOL    FALSE           # XXX : turn off flat for now
   MASK             BOOL    FALSE           # Mask bad pixels
   FRINGE           BOOL    FALSE           # Fringe subtraction