Index: /issm/trunk/src/c/include/macros.h
===================================================================
--- /issm/trunk/src/c/include/macros.h	(revision 8812)
+++ /issm/trunk/src/c/include/macros.h	(revision 8813)
@@ -34,5 +34,5 @@
 #ifdef _ISSM_DEBUG_ 
 #define _assert_(statement)\
-  if (!(statement)) _error_("Assertion \"%s\" failed, please report bug to an ISSM developer",#statement)
+  if (!(statement)) _error_("Assertion \"%s\" failed, please report bug to ISSM developers",#statement)
 #else
 #define _assert_(ignore)\
Index: /issm/trunk/src/c/objects/Node.cpp
===================================================================
--- /issm/trunk/src/c/objects/Node.cpp	(revision 8812)
+++ /issm/trunk/src/c/objects/Node.cpp	(revision 8813)
@@ -836,4 +836,5 @@
 			for(i=0;i<this->indexing.gsize;i++){
 				if(this->indexing.f_set[i]){
+					_assert_(vector_serial);
 					values[count]=vector_serial[this->indexing.fdoflist[count]];
 					indices[count]=this->indexing.gdoflist[i];
@@ -853,4 +854,5 @@
 			for(i=0;i<this->indexing.gsize;i++){
 				if(this->indexing.s_set[i]){
+					_assert_(vector_serial);
 					values[count]=vector_serial[this->indexing.sdoflist[count]];
 					indices[count]=this->indexing.gdoflist[i];
@@ -883,4 +885,5 @@
 			for(i=0;i<this->indexing.gsize;i++){
 				if(this->indexing.f_set[i]){
+					_assert_(ug_serial);
 					values[count]=ug_serial[this->indexing.gdoflist[count]];
 					count++;
@@ -898,4 +901,5 @@
 			for(i=0;i<this->indexing.gsize;i++){
 				if(this->indexing.s_set[i]){
+					_assert_(ug_serial);
 					values[count]=ug_serial[this->indexing.gdoflist[count]];
 					count++;