--- DarthVader/TrackerLevel2/src/F77/cncomp.f	2007/08/20 16:07:16	1.8
+++ DarthVader/TrackerLevel2/src/F77/cncomp.f	2007/08/31 14:56:52	1.9
@@ -33,6 +33,23 @@
          strange(i,j,k)=1       !initializes unusually high or low signal 
       enddo                     ! affected strips flag
 
+c------------------------------------------------------------------------
+c     (september 2007)
+c     remove from CN computation the first and the last 3 channels of 
+c     each X view, becouse they ar not connected to any strip
+c------------------------------------------------------------------------
+      if(mod(i,2).eq.0)then
+         if(j.eq.1)then
+            do k=1,3
+               strange(i,j,k)=0
+            enddo
+         elseif(j.eq.nva1_ladder)then
+            do k=nstrips_va1,nstrips_va1-2,-1
+               strange(i,j,k)=0
+            enddo
+         endif
+      endif
+
       newclstr=1                !flag to warn about new found signal 
 c                               ! affected strips
 c------------------------------------------------------------------------