diff --git a/src/fmenuitem.cpp b/src/fmenuitem.cpp
index 7400e8fa..f78dbd5f 100644
--- a/src/fmenuitem.cpp
+++ b/src/fmenuitem.cpp
@@ -96,10 +96,12 @@ void FMenuItem::init (FWidget* parent)
 
   if ( parent )
   {
+    FMenuList* super_menu_list = dynamic_cast<FMenuList*>(parent);
+    setSuperMenu(super_menu_list);
+    super_menu_list->insert(this);
+
     if ( isMenuBar(parent) ) // Parent is menubar
     {
-      setSuperMenu( dynamic_cast<FMenuList*>(parent) );
-      superMenu()->insert(this);
       FMenuBar* menubar_ptr = dynamic_cast<FMenuBar*>(parent);
       if ( menubar_ptr )
         menubar_ptr->menu_dimension();
@@ -119,8 +121,6 @@ void FMenuItem::init (FWidget* parent)
     }
     else if ( isMenu(parent) ) // Parent is menu
     {
-      setSuperMenu( dynamic_cast<FMenuList*>(parent) );
-      superMenu()->insert(this);
       FMenu* super_menu_ptr = dynamic_cast<FMenu*>(parent);
       if ( super_menu_ptr )
         super_menu_ptr->menu_dimension();
@@ -259,10 +259,18 @@ void FMenuItem::onMouseDown (FMouseEvent* ev)
   if ( super_menu )
   {
     if ( isMenu(super_menu) )
-      dynamic_cast<FMenu*>(super_menu)->onMouseDown(ev);
+    {
+      FMenu* sm = dynamic_cast<FMenu*>(super_menu);
+      if ( sm )
+        sm->onMouseDown(ev);
+    }
 
     if ( isMenuBar(super_menu) )
-      dynamic_cast<FMenuBar*>(super_menu)->onMouseDown(ev);
+    {
+      FMenuBar* mb = dynamic_cast<FMenuBar*>(super_menu);
+      if ( mb )
+        mb->onMouseDown(ev);
+    }
   }
 
   delete ev;
@@ -281,10 +289,18 @@ void FMenuItem::onMouseUp (FMouseEvent* ev)
   if ( super_menu )
   {
     if ( isMenu(super_menu) )
-      dynamic_cast<FMenu*>(super_menu)->onMouseUp(ev);
+    {
+      FMenu* sm = dynamic_cast<FMenu*>(super_menu);
+      if ( sm )
+        sm->onMouseUp(ev);
+    }
 
     if ( isMenuBar(super_menu) )
-      dynamic_cast<FMenuBar*>(super_menu)->onMouseUp(ev);
+    {
+      FMenuBar* mb = dynamic_cast<FMenuBar*>(super_menu);
+      if ( mb )
+        mb->onMouseUp(ev);
+    }
   }
 
   delete ev;
@@ -303,10 +319,18 @@ void FMenuItem::onMouseMove (FMouseEvent* ev)
   if ( super_menu )
   {
     if ( isMenu(super_menu) )
-      dynamic_cast<FMenu*>(super_menu)->onMouseMove(ev);
+    {
+      FMenu* sm = dynamic_cast<FMenu*>(super_menu);
+      if ( sm )
+        sm->onMouseMove(ev);
+    }
 
     if ( isMenuBar(super_menu) )
-      dynamic_cast<FMenuBar*>(super_menu)->onMouseMove(ev);
+    {
+      FMenuBar* mb = dynamic_cast<FMenuBar*>(super_menu);
+      if ( mb )
+        mb->onMouseMove(ev);
+    }
   }
 
   delete ev;
diff --git a/src/foptimove.cpp b/src/foptimove.cpp
index 546c25e1..0f3af13f 100644
--- a/src/foptimove.cpp
+++ b/src/foptimove.cpp
@@ -422,7 +422,9 @@ int FOptiMove::relative_move ( char*& move
 
       if ( F_parm_right_cursor.cap && F_parm_right_cursor.duration < htime )
       {
-        strcat (hmove, tparm(F_parm_right_cursor.cap, num));
+        strncat ( hmove
+                , tparm(F_parm_right_cursor.cap, num)
+                , sizeof(hmove) - strlen(hmove) - 1 );
         htime = F_parm_right_cursor.duration;
       }
 
@@ -647,7 +649,7 @@ char* FOptiMove::cursor_move (int xold, int yold, int xnew, int ynew)
         break;
 
       case 4:
-        strncpy (move_ptr, F_cursor_to_ll.cap, sizeof(move_buf));
+        strncpy (move_ptr, F_cursor_to_ll.cap, sizeof(move_buf) - 1);
         move_ptr += F_cursor_to_ll.length;
         relative_move (move_ptr, 0, screen_height-1, xnew, ynew);
         break;
@@ -656,7 +658,9 @@ char* FOptiMove::cursor_move (int xold, int yold, int xnew, int ynew)
         move_buf[0] = '\0';
         if ( xold >= 0 )
           strcat (move_ptr, F_carriage_return.cap);
-        strcat (move_ptr, F_cursor_left.cap);
+        strncat ( move_ptr
+                , F_cursor_left.cap
+                , sizeof(move_buf) - strlen(move_ptr) - 1 );
         move_ptr += strlen(move_buf);
         relative_move (move_ptr, screen_width-1, yold-1, xnew, ynew);
         break;
diff --git a/src/fterm.cpp b/src/fterm.cpp
index 4174e9a3..580e1a60 100644
--- a/src/fterm.cpp
+++ b/src/fterm.cpp
@@ -220,11 +220,9 @@ int FTerm::getFramebuffer_bpp ()
     else
     {
       ::close(fd);
-      return -1;
     }
   }
-  else
-    return -1;
+  return -1;
 }
 
 //----------------------------------------------------------------------
diff --git a/test/string-operations.cpp b/test/string-operations.cpp
index 1ef290ac..bc4cc606 100644
--- a/test/string-operations.cpp
+++ b/test/string-operations.cpp
@@ -206,8 +206,15 @@ int main (int, char**)
             << alphabet.right(11)  << "\"" << std::endl;
 
   FString insert_str = "I am a string";
-  std::cout << "   insert: "
-            << insert_str.insert("changed ", 7) << std::endl;
+  try
+  {
+    std::cout << "   insert: "
+              << insert_str.insert("changed ", 7) << std::endl;
+  }
+  catch (const std::out_of_range& ex)
+  {
+    std::cerr << "Out of Range error: " << ex.what() << std::endl;
+  }
 
   FString index(5); // a string with five characters
   index = "index";
@@ -222,6 +229,7 @@ int main (int, char**)
   {
     std::cerr << "Out of Range error: " << ex.what() << std::endl;
   }
+
   FString stringIterator = "iterator";
   FString::iterator iter;
   iter = stringIterator.begin();