--- trunk/OOPSE/libmdtools/calc_sticky_pair.F90	2003/04/07 21:20:38	473
+++ trunk/OOPSE/libmdtools/calc_sticky_pair.F90	2003/04/08 22:38:43	482
@@ -9,7 +9,7 @@
 !! @author Matthew Meineke
 !! @author Christopher Fennel
 !! @author J. Daniel Gezelter
-!! @version $Id: calc_sticky_pair.F90,v 1.6 2003-04-07 21:20:38 mmeineke Exp $, $Date: 2003-04-07 21:20:38 $, $Name: not supported by cvs2svn $, $Revision: 1.6 $
+!! @version $Id: calc_sticky_pair.F90,v 1.7 2003-04-08 22:38:43 chuckv Exp $, $Date: 2003-04-08 22:38:43 $, $Name: not supported by cvs2svn $, $Revision: 1.7 $
 
 module sticky_pair
 
@@ -308,13 +308,13 @@ contains
     f_Col(2,atom2) = f_Col(2,atom2) - fyradial
     f_Col(3,atom2) = f_Col(3,atom2) - fzradial
 #else
-    f(1,atom1) = f(1,atom1) - fxradial
-    f(2,atom1) = f(2,atom1) - fyradial
-    f(3,atom1) = f(3,atom1) - fzradial
+    f(1,atom1) = f(1,atom1) + fxradial
+    f(2,atom1) = f(2,atom1) + fyradial
+    f(3,atom1) = f(3,atom1) + fzradial
     
-    f(1,atom2) = f(1,atom2) + fxradial
-    f(2,atom2) = f(2,atom2) + fyradial
-    f(3,atom2) = f(3,atom2) + fzradial
+    f(1,atom2) = f(1,atom2) - fxradial
+    f(2,atom2) = f(2,atom2) - fyradial
+    f(3,atom2) = f(3,atom2) - fzradial
 #endif
     
     if (do_stress) then