diff --git a/src/schedulables_tree_widget.cc b/src/schedulables_tree_widget.cc
index 6bb2954..af6d319 100644
--- a/src/schedulables_tree_widget.cc
+++ b/src/schedulables_tree_widget.cc
@@ -62,11 +62,15 @@ SchedulablesTreeWidget::SchedulablesTreeWidget()
   
   set_model(_model);
 
-  int idx = append_column(_("schedulables"), _cell_renderer) - 1;
+  int idx = append_column(_("Entities"), _cell_renderer) - 1;
   Gtk::TreeViewColumn* tvc = get_column(idx);
-  tvc->set_cell_data_func(_cell_renderer, sigc::mem_fun(*this, &SchedulablesTreeWidget::_on_cell_name_data));
+  tvc->set_cell_data_func(_cell_renderer, sigc::mem_fun(*this, &SchedulablesTreeWidget::_on_entities_column_data));
   
-  set_headers_visible(false);
+  idx = append_column(_("State"), _cell_renderer) - 1;
+  tvc = get_column(idx);
+  tvc->set_cell_data_func(_cell_renderer, sigc::mem_fun(*this, &SchedulablesTreeWidget::_on_state_column_data));
+  
+  set_headers_visible(true);
 
   Simulation::get_instance().get_history().attach(*this);
 }
@@ -579,24 +583,9 @@ SchedulablesTreeWidget::_on_remove_request()
   Simulation::get_instance().get_history().remove(*r);
 }
 
-//void
-//SchedulablesTreeWidget::_on_remove_subrequest()
-//{
-//  SubRequest* sr = get_selected<SubRequest>();
-//  assert(sr != NULL);
-//
-//  Request& owner = sr->get_request();
-//  
-//  Simulation::get_instance().get_history().remove(*sr);
-//
-//  // empty requests are COMPLETELY useless with the current GUI
-//  if(owner.get_subrequests().empty())
-//    Simulation::get_instance().get_history().remove(owner);
-//}
-
 void 
-SchedulablesTreeWidget::_on_cell_name_data(Gtk::CellRenderer* cr, 
-                                           const Gtk::TreeModel::iterator& it)
+SchedulablesTreeWidget::_on_entities_column_data(Gtk::CellRenderer* cr, 
+                                                 const Gtk::TreeModel::iterator& it)
 {
   CellRendererTextMarkup& crtm = static_cast<CellRendererTextMarkup&>(*cr);
 
@@ -678,3 +667,90 @@ SchedulablesTreeWidget::markup_request(Request& r)
   return oss.str();
 }
 
+void 
+SchedulablesTreeWidget::_on_state_column_data(Gtk::CellRenderer* cr, 
+                                              const Gtk::TreeModel::iterator& it)
+{
+  CellRendererTextMarkup& crtm = static_cast<CellRendererTextMarkup&>(*cr);
+
+  ustring marked_up;
+  
+  switch(get_row_type(it))
+  {
+  case htype_process:
+    marked_up = markup_state(get_row_handle_as<Process>(it)->get_state());
+    break;
+    
+  case htype_thread:
+    marked_up = markup_state(get_row_handle_as<Thread>(it)->get_state());
+    break;
+    
+  case htype_request:
+    marked_up = markup_state(get_row_handle_as<Request>(it)->get_state());
+    break;
+  default:
+    marked_up = "<small>NO STATE</small>";
+  }
+  
+  crtm.property_markup() = marked_up;
+}
+
+ustring
+SchedulablesTreeWidget::markup_state(Schedulable::state state)
+{
+  ustring text;
+  
+  switch (state)
+  {
+  case Schedulable::state_running:
+    text = _("RUNNING");
+    break;
+  case Schedulable::state_ready:
+    text = _("READY");
+    break;
+  case Schedulable::state_blocked:
+    text = _("BLOCKED");
+    break;
+  case Schedulable::state_future:
+    text = _("FUTURE");
+    break;
+  case Schedulable::state_terminated:
+    text = _("TERMINATED");
+    break;
+  default:
+    text = _("@@@ ERROR @@@");
+  }
+
+  return ustring("<small>") + Markup::escape_text(text) + "</small>";
+}
+
+ustring
+SchedulablesTreeWidget::markup_state(Request::state state)
+{
+  ustring text;
+  
+  switch (state)
+  {
+  case Request::state_allocated:
+    text = _("ALLOCATED");
+    break;
+  case Request::state_allocable:
+    text = _("ALLOCABLE");
+    break;
+  case Request::state_unallocable:
+    text = _("UNALLOCABLE");
+    break;
+  case Request::state_future:
+    text = _("FUTURE");
+    break;
+  case Request::state_exhausted:
+    text = _("EXHAUSTED");
+    break;
+  default:
+    text = _("@@@ ERROR @@@");
+  }
+
+  return ustring("<small>") + Markup::escape_text(text) + "</small>";
+}
+
+
diff --git a/src/schedulables_tree_widget.hh b/src/schedulables_tree_widget.hh
index d4c926d..21ac9c3 100644
--- a/src/schedulables_tree_widget.hh
+++ b/src/schedulables_tree_widget.hh
@@ -41,6 +41,8 @@ namespace sgpem
 #include <libglademm/xml.h>
 
 #include <sgpemv2/history_observer.hh>
+#include <sgpemv2/schedulable.hh>
+#include <sgpemv2/request.hh>
 
 #include <vector>
 
@@ -104,11 +106,17 @@ namespace sgpem
     void _on_remove_request();
 //    void _on_remove_subrequest();
     
-    void _on_cell_name_data(Gtk::CellRenderer* cr, 
-                            const Gtk::TreeModel::iterator& it);
+    void _on_entities_column_data(Gtk::CellRenderer* cr, 
+                                  const Gtk::TreeModel::iterator& it);
+    
+    void _on_state_column_data(Gtk::CellRenderer* cr, 
+                               const Gtk::TreeModel::iterator& it);
     
     Glib::ustring markup_schedulable(const Schedulable& s);
     Glib::ustring markup_request(Request& s);
+
+    Glib::ustring markup_state(Schedulable::state state);
+    Glib::ustring markup_state(Request::state state);
     
     Glib::RefPtr<Gtk::TreeStore> _model;
     Gtk::TreeModelColumnRecord _columns;