--- branches/development/src/primitives/RigidBody.cpp	2013/01/31 04:00:02	1845
+++ branches/development/src/primitives/RigidBody.cpp	2013/05/15 15:09:35	1874
@@ -35,7 +35,7 @@
  *                                                                      
  * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).             
  * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).          
- * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).          
+ * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).          
  * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
  * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
  */
@@ -355,7 +355,7 @@ namespace OpenMD {
 
       if (atoms_[i]->isDirectional()) {
           
-	dAtom = (DirectionalAtom *) atoms_[i];
+	dAtom = dynamic_cast<DirectionalAtom *>(atoms_[i]);
 	dAtom->setA(refOrients_[i].transpose() * a);
       }
 
@@ -382,7 +382,7 @@ namespace OpenMD {
 
       if (atoms_[i]->isDirectional()) {
           
-	dAtom = (DirectionalAtom *) atoms_[i];
+	dAtom = dynamic_cast<DirectionalAtom *>(atoms_[i]);
 	dAtom->setA(refOrients_[i].transpose() * a, frame);
       }