diff --git a/include/stack.cpp b/include/stack.cpp
index 46f19a2e2..6eac189b9 100755
--- a/include/stack.cpp
+++ b/include/stack.cpp
@@ -1,7 +1,10 @@
 #include <stack.h>
 
 TStack::TStack(int size) : _data(size), _sp(0)
-{}
+{ }
+
+TStack::TStack(const TStack& stack) : _data(stack._data), _sp(0)
+{ }
 
 void TStack::push(const TObject& o)
 {
diff --git a/include/stack.h b/include/stack.h
index 1f87ad974..99e7cdf19 100755
--- a/include/stack.h
+++ b/include/stack.h
@@ -40,6 +40,8 @@ public:
   bool destroy_base();
   // @cmember Costruttore. Chiama il costruttore di <c TArray>
   TStack(int size = 16);
+  // @cmember Costruttore. Chiama il costruttore di <c TArray>
+  TStack(const TStack& stack);
   // @cmember Distruttore. Chiama il distruttore di <c TArray>
   virtual ~TStack() { }
 };
diff --git a/include/tabapp.h b/include/tabapp.h
index e8e5a6f27..343c8c463 100755
--- a/include/tabapp.h
+++ b/include/tabapp.h
@@ -11,6 +11,8 @@
 
 #define FPC "FPC"
 
+#define TTable_application Tab_application
+
 // @doc EXTERNAL
 
 // @class Tab_application | Classe per la definizione della <c TRelation_application> per le tabelle
@@ -56,16 +58,16 @@ protected:
   // @cmember imposta la maschera (se non indicata, usa le convenzioni di default) ed eventualmente disalloca quella usata in precedenza
   virtual TMask* set_mask(TMask* mask = NULL);
 
-
 // @access Public Member
 public:
+  // @cmember Ritorna il nome della tabella
+  const TString& get_tabname() const 
+  { return _tabname; }
+
   // @cmember Costruttore
   Tab_application();
   // @cmember Distruttore
   virtual ~Tab_application();
-  // @cmember Ritorna il nome della tabella
-  const TString& get_tabname() const 
-  { return _tabname; }
 };
 
 #endif
diff --git a/include/tabutil.cpp b/include/tabutil.cpp
index b84f210db..35fddfb6c 100755
--- a/include/tabutil.cpp
+++ b/include/tabutil.cpp
@@ -34,13 +34,15 @@ int TTable::skip(TRecnotype nrec, word lockop)
   {
     if (nrec > 0)
     {
-      if (lockop == _lock) TBaseisamfile::reread(_unlock);
+      if (lockop == _lock) 
+        TBaseisamfile::reread(_unlock);
       last(lockop);
       setstatus(_iseof);
     }
     else
     {
-      if (lockop == _lock) TBaseisamfile::reread(_unlock);
+      if (lockop == _lock) 
+        TBaseisamfile::reread(_unlock);
       first(lockop);
       setstatus(_isbof);
     }
@@ -155,12 +157,15 @@ void  TTable::load_module_description()
   if (list_files(n, f) == 1)
   {
     n = f.row(0);
-    if (!fexist(n))
+    if (!n.exist())
       n.overwrite("ba",0);
-    if (fexist(n))
+    if (n.exist())
     {
       if (_module.empty())
+      {
         _module = n.left(2);
+        _module.lower();
+      }
       TScanner m(n);
       bool ok = TRUE;             
       while (ok) 
diff --git a/include/viswin.cpp b/include/viswin.cpp
index 60f5663cc..c259e5dfd 100755
--- a/include/viswin.cpp
+++ b/include/viswin.cpp
@@ -1518,9 +1518,9 @@ void TViswin::handler (WINDOW win, EVENT * ep)
       p = ep->v.mouse.where;
       if (_selecting)
         _isselection = TRUE;;
-    {
-      _isselection = TRUE;
-    }
+      {
+        _isselection = TRUE;
+      }
       // scroll if necessary
       if (p.y >= _textrows + 1l)
       {
@@ -2272,8 +2272,9 @@ void TViswin::close_print ()
   if (_toplevel) 
   {
     xvt_menu_set_item_title(win(), M_EDIT_QUIT, "Chiudi\tESC");
-    enable_menu_item(M_EDIT_CLIPBOARD, FALSE);  
-    _print_button->enable();
+    enable_menu_item(M_EDIT_CLIPBOARD, FALSE); 
+    if (_print_button)
+      _print_button->enable();
     enable_menu_item(M_EDIT_SEL_ALL, TRUE);  
     // build bookmark menu tree
     _bookmarks = &(printer().get_bookmarks());
@@ -2294,7 +2295,7 @@ void TViswin::goto_end()
 
 void TViswin::goto_top()
 {                     
-  goto_pos(0l,0l);;
+  goto_pos(0l,0l);
 }
 
 // @doc INTERNAL