diff --git a/gui/src/tascar_mainwindow.cc b/gui/src/tascar_mainwindow.cc
index 4a3a6005..ca37c5bb 100644
--- a/gui/src/tascar_mainwindow.cc
+++ b/gui/src/tascar_mainwindow.cc
@@ -365,6 +365,10 @@ bool tascar_window_t::on_timeout_blink()
     else
       blink = true;
     draw.set_blink(blink);
+    if(TASCAR::get_warnings().size() > numlastwarnings) {
+      numlastwarnings = TASCAR::get_warnings().size();
+      on_menu_view_show_warnings();
+    }
     bool has_warnings(text_warnings->get_buffer()->size());
     Gdk::RGBA col;
     if(has_warnings)
@@ -498,6 +502,7 @@ bool tascar_window_t::draw_scene(const Cairo::RefPtr<Cairo::Context>& cr)
 void tascar_window_t::load(const std::string& fname)
 {
   get_warnings().clear();
+  numlastwarnings = 0;
   scene_load(fname);
   tascar_filename = fname;
   sessionquit = false;
@@ -748,7 +753,7 @@ void tascar_window_t::on_menu_file_close()
 {
   try {
     scene_destroy();
-    get_warnings().clear();
+    // get_warnings().clear();
 #if defined(WEBKIT2GTK30) || defined(WEBKIT2GTK40)
     webkit_web_view_try_close(news_view);
 #endif
@@ -996,6 +1001,7 @@ void tascar_window_t::on_menu_file_reload()
 {
   try {
     get_warnings().clear();
+    numlastwarnings = 0;
     scene_load(tascar_filename);
     sessionquit = false;
     if(session) {
@@ -1068,6 +1074,7 @@ void tascar_window_t::on_menu_file_open()
     std::string filename = dialog.get_filename();
     try {
       get_warnings().clear();
+      numlastwarnings = 0;
       scene_load(filename);
       tascar_filename = filename;
       sessionquit = false;
@@ -1109,6 +1116,7 @@ void tascar_window_t::on_menu_file_open_example()
     std::string filename = dialog.get_filename();
     try {
       get_warnings().clear();
+      numlastwarnings = 0;
       scene_load(filename);
       tascar_filename = filename;
       sessionquit = false;
diff --git a/gui/src/tascar_mainwindow.h b/gui/src/tascar_mainwindow.h
index bdde9b9b..f4a7f846 100644
--- a/gui/src/tascar_mainwindow.h
+++ b/gui/src/tascar_mainwindow.h
@@ -165,6 +165,8 @@ class tascar_window_t : public scene_manager_t, public Gtk::Window
   Gtk::Widget* news_viewpp;
 #endif
   uint32_t splash_timeout;
+
+  size_t numlastwarnings = 0;
 };
 
 #endif
diff --git a/libtascar/src/tscconfig.cc b/libtascar/src/tscconfig.cc
index 283a1171..5f14f765 100644
--- a/libtascar/src/tscconfig.cc
+++ b/libtascar/src/tscconfig.cc
@@ -84,6 +84,7 @@ namespace TASCAR {
     std::string operator()(const std::string&, const std::string&) const;
     void forceoverwrite(const std::string&, const std::string&);
     void writeconfig(const std::vector<std::string>& keys);
+    ~globalconfig_t();
 
   private:
     void readconfig(const std::string& fname);
@@ -243,7 +244,8 @@ void TASCAR::generate_plugin_documentation_tables(bool latex)
                        fname + "."
                 << std::endl;
       std::ofstream fh(fname);
-      fh << "\\definecolor{shadecolor}{RGB}{255,230,204}\\begin{snugshade}\n{\\footnotesize\n";
+      fh << "\\definecolor{shadecolor}{RGB}{255,230,204}\\begin{snugshade}\n{"
+            "\\footnotesize\n";
       fh << "\\label{attrtab:" << elem.first << "}\n";
       fh << "Attributes of ";
       if(elem.second.type.empty())
@@ -692,6 +694,8 @@ TASCAR::globalconfig_t::globalconfig_t()
   readconfig("${HOME}/.tascardefaults.xml");
 }
 
+TASCAR::globalconfig_t::~globalconfig_t() {}
+
 void TASCAR::globalconfig_t::readconfig(const std::string& fname)
 {
   try {