Index: /trunk/BNC/combination/bnccomb.cpp
===================================================================
--- /trunk/BNC/combination/bnccomb.cpp	(revision 2986)
+++ /trunk/BNC/combination/bnccomb.cpp	(revision 2987)
@@ -340,5 +340,12 @@
 void bncComb::switchToLastEph(const t_eph* lastEph, const t_eph* prevEph, 
                               t_corr* newCorr) {
-
+  ColumnVector oldXC(4);
+  ColumnVector oldVV(3);
+  prevEph->position(newCorr->tt.gpsw(), newCorr->tt.gpssec(), 
+                    oldXC.data(), oldVV.data());
+  ColumnVector newXC(4);
+  ColumnVector newVV(3);
+  lastEph->position(newCorr->tt.gpsw(), newCorr->tt.gpssec(), 
+                    newXC.data(), newVV.data());
 }