Index: /trunk/BNC/src/combination/bnccomb.cpp
===================================================================
--- /trunk/BNC/src/combination/bnccomb.cpp	(revision 5866)
+++ /trunk/BNC/src/combination/bnccomb.cpp	(revision 5867)
@@ -592,4 +592,5 @@
     }
 
+    dx = 0.0;
     kalman(AA, ll, PP, _QQ, dx);
     ColumnVector vv = ll - AA * dx;