Index: /trunk/BNC/src/PPP/pppFilter.cpp
===================================================================
--- /trunk/BNC/src/PPP/pppFilter.cpp	(revision 6162)
+++ /trunk/BNC/src/PPP/pppFilter.cpp	(revision 6163)
@@ -196,5 +196,7 @@
     // Kalman update step
     // ------------------
-    kalman(AA, ll, PP, _QFlt, _xFlt);
+    ColumnVector dx;
+    kalman(AA, ll, PP, _QFlt, dx);
+    _xFlt += dx;
 
     // Check Residuals