diff --git a/src/istack.c b/src/istack.c
index afa6c73..dc708e4 100644
--- a/src/istack.c
+++ b/src/istack.c
@@ -10,6 +10,9 @@
 #include "attrs.h"
 #include "streamio.h"
 #include "tmbstr.h"
+#if !defined(NDEBUG) && defined(_MSC_VER)
+#include "sprtf.h"
+#endif
 
 /* duplicate attributes */
 AttVal *TY_(DupAttrs)( TidyDocImpl* doc, AttVal *attrs)
@@ -115,6 +118,7 @@ static void PopIStack( TidyDocImpl* doc )
         TY_(FreeAttribute)( doc, av );
     }
     TidyDocFree(doc, istack->element);
+    istack->element = NULL; /* remove the freed element */
 }
 
 static void PopIStackUntil( TidyDocImpl* doc, TidyTagId tid )
@@ -267,9 +271,12 @@ Node *TY_(InsertedToken)( TidyDocImpl* doc )
     node->end = lexer->txtend; /* was : lexer->txtstart; */
     istack = lexer->insert;
 
-#if 0 && defined(_DEBUG)
+/* #if 0 && defined(_DEBUG) */
+#if !defined(NDEBUG) && defined(_MSC_VER)
     if ( lexer->istacksize == 0 )
-        fprintf( stderr, "0-size istack!\n" );
+    {
+        SPRTF( "WARNING: ZERO sized istack!\n" );
+    }
 #endif
 
     node->element = TY_(tmbstrdup)(doc->allocator, istack->element);
diff --git a/src/lexer.c b/src/lexer.c
index 5d368ac..66ac397 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -144,7 +144,7 @@ static void Show_Node( TidyDocImpl* doc, const char *msg, Node *node )
     tmbstr src = lex ? "lexer" : "stream";
     SPRTF("R=%d C=%d: ", line, col );
     // DEBUG: Be able to set a TRAP on a SPECIFIC row,col
-    if ((line == 8) && (col == 36)) {
+    if ((line == 67) && (col == 95)) {
         check_me("Show_Node"); // just a debug trap
     }
     if (lexer && lexer->token && 
@@ -2307,8 +2307,11 @@ Node* TY_(GetToken)( TidyDocImpl* doc, GetTokenMode mode )
     assert( !(lexer->pushed || lexer->itoken) );
 
     /* at start of block elements, unclosed inline
-       elements are inserted into the token stream */
-    if (lexer->insert || lexer->inode) {
+       elements are inserted into the token stream 
+       Issue #341 - Can NOT insert a token if NO istacksize  
+     */
+    if ((lexer->insert || lexer->inode) && lexer->istacksize)
+    {
         /*\ Issue #92: could fix by the following, but instead chose not to stack these 2
          *  if ( !(lexer->insert && (nodeIsINS(lexer->insert) || nodeIsDEL(lexer->insert))) ) {
         \*/
diff --git a/version.txt b/version.txt
index 915d3ff..43ab206 100644
--- a/version.txt
+++ b/version.txt
@@ -1,2 +1,2 @@
-5.1.36
-2016.02.01
+5.1.37Test
+2016.02.08