Index: trunk/Ohana/src/opihi/dvo/showtile.c
===================================================================
--- trunk/Ohana/src/opihi/dvo/showtile.c	(revision 20936)
+++ trunk/Ohana/src/opihi/dvo/showtile.c	(revision 34584)
@@ -86,5 +86,5 @@
     graphmode.ptype = 100; /* connect pairs of points */
     graphmode.etype = 0;
-    PlotVectorPair (kapa, &Xvec, &Yvec, &graphmode);
+    PlotVectorPair (kapa, &Xvec, &Yvec, NULL, &graphmode);
   }