Index: trunk/Ohana/src/opihi/cmd.data/cumulative.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/cumulative.c	(revision 20936)
+++ trunk/Ohana/src/opihi/cmd.data/cumulative.c	(revision 33662)
@@ -23,4 +23,6 @@
     opihi_flt *Vi = ivec[0].elements.Flt;
     *Vo = *Vi;
+    Vi++; 
+    Vo++;
     for (i = 1; i < ivec[0].Nelements; i++, Vi++, Vo++) {
       *Vo = Vo[-1] + *Vi;
@@ -29,4 +31,6 @@
     opihi_int *Vi = ivec[0].elements.Int;
     *Vo = *Vi;
+    Vi++;
+    Vo++;
     for (i = 1; i < ivec[0].Nelements; i++, Vi++, Vo++) {
       *Vo = Vo[-1] + *Vi;