diff --git a/src/schedulable_state_widget.cc b/src/schedulable_state_widget.cc
index 0f35e34..a73384c 100644
--- a/src/schedulable_state_widget.cc
+++ b/src/schedulable_state_widget.cc
@@ -22,6 +22,8 @@
 
 #include "schedulable_state_widget.hh"
 
+#include "smartp.tcc"
+
 #include <glibmm/ustring.h>
 
 #include <cassert>
@@ -29,15 +31,16 @@
 using namespace sgpem;
 
 
-Gtk::Tooltips*
-SchedulableStateWidget::_ttips = NULL;
+memory::smart_ptr<Gtk::Tooltips>
+SchedulableStateWidget::_global_ttips = NULL;
 
 
 SchedulableStateWidget::SchedulableStateWidget(Schedulable::state st)
   : Glib::ObjectBase("sgpem_SchedulableStateWidget"), CairoWidget(), _color(1, 1, 1)
 {
   // Yes, we leak, but this will be up until the end of the app
-  if(!_ttips) _ttips = new Gtk::Tooltips();
+  if(!_global_ttips) _global_ttips = new Gtk::Tooltips();
+  _ttips = _global_ttips;
 
   set_scaling_mode(scaling_to_w);
   set_state(st);
@@ -46,6 +49,9 @@ SchedulableStateWidget::SchedulableStateWidget(Schedulable::state st)
 SchedulableStateWidget::~SchedulableStateWidget()
 {
   _ttips->unset_tip(*this);
+  _ttips = memory::smart_ptr<Gtk::Tooltips>::null;
+  if(_global_ttips.alive_refs() == 1)
+    _global_ttips = memory::smart_ptr<Gtk::Tooltips>::null;
 }
 
 
@@ -68,7 +74,7 @@ SchedulableStateWidget::set_state(Schedulable::state new_state)
       tip = _("Running");
       break;
     case Schedulable::state_blocked:
-      _color = Color(0, 0, 1); // Blue
+      _color = Color(1, 0, 0); // Red
       tip = _("Blocked");
       break;
     case Schedulable::state_terminated:
diff --git a/src/schedulable_state_widget.hh b/src/schedulable_state_widget.hh
index b658a1d..3e4dcdb 100644
--- a/src/schedulable_state_widget.hh
+++ b/src/schedulable_state_widget.hh
@@ -27,7 +27,8 @@
 #include "cairo_elements.hh"
 #include "cairo_widget.hh"
 
-#include "glibmm/refptr.h"
+#include "smartp.tcc"
+
 #include "gtkmm/tooltips.h"
 
 namespace sgpem
@@ -50,8 +51,10 @@ namespace sgpem
     virtual void calc_widget_size(size_t& width, size_t& height) const;
 
   private:
-           Color          _color;
-    static Gtk::Tooltips* _ttips;
+    static memory::smart_ptr<Gtk::Tooltips>  _global_ttips;
+
+    Color          _color;
+    memory::smart_ptr<Gtk::Tooltips>         _ttips;
   };
 
 } //~ namespace sgpem