Index: trunk/BNC/bncpppclient.cpp
===================================================================
--- trunk/BNC/bncpppclient.cpp	(revision 2408)
+++ trunk/BNC/bncpppclient.cpp	(revision 2414)
@@ -440,8 +440,8 @@
   RSW_to_XYZ(xc.Rows(1,3), vv, raoHlp, dx);
 
-  xc[0] += dx[0];
-  xc[1] += dx[1];
-  xc[2] += dx[2];
-  xc[3] += cc->dClk + cc->dotDClk * dt + cc->dotDotDClk * dt * dt;
+  xc[0] -= dx[0];
+  xc[1] -= dx[1];
+  xc[2] -= dx[2];
+  xc[3] -= cc->dClk + cc->dotDClk * dt + cc->dotDotDClk * dt * dt;
 }