diff --git a/configure.ac b/configure.ac
index 4e3bedd5..a3c18a43 100644
--- a/configure.ac
+++ b/configure.ac
@@ -98,6 +98,16 @@ if test "$strict" = "yes"; then
   CXXFLAGS="$CXXFLAGS -ansi -Wall -Wextra -Wno-unused-parameter -Wconversion -Winit-self -Woverloaded-virtual -Wsign-promo"
 fi
 
+# Boost shared_ptr debugging
+pointer_debug="no"
+AC_ARG_ENABLE(pointer_debug,
+	[AS_HELP_STRING(--enable-pointer-debug, [Enable smart pointer debugging (no)])],
+	[pointer_debug="$enableval"])
+if test "$pointer_debug" = "yes"; then
+  CFLAGS+=" -DBOOST_SP_ENABLE_DEBUG_HOOKS"
+  CXXFLAGS+=" -DBOOST_SP_ENABLE_DEBUG_HOOKS"
+fi
+
 # Bolt on a few specific flags to CXXFLAGS that should always be used
 CXXFLAGS="$CXXFLAGS -pipe -Wall -fmessage-length=139 -fdiagnostics-show-location=every-line"
 CFLAGS="$CFLAGS -pipe -Wall -fmessage-length=139 -fdiagnostics-show-location=every-line"
diff --git a/src/AlsaDriver.cpp b/src/AlsaDriver.cpp
index f868af9e..eb93dac3 100644
--- a/src/AlsaDriver.cpp
+++ b/src/AlsaDriver.cpp
@@ -73,7 +73,7 @@ AlsaDriver::attach(bool /*launch_daemon*/)
 void
 AlsaDriver::detach() 
 {
-	if (m_seq != NULL) {
+	if (m_seq) {
 		pthread_cancel(m_refresh_thread);
 		pthread_join(m_refresh_thread, NULL);
 		snd_seq_close(m_seq);
diff --git a/src/JackDriver.cpp b/src/JackDriver.cpp
index 8bfea6f4..eef6b2f4 100644
--- a/src/JackDriver.cpp
+++ b/src/JackDriver.cpp
@@ -75,12 +75,12 @@ JackDriver::attach(bool launch_daemon)
 void
 JackDriver::detach() 
 {
-	if (m_client != NULL) {
+	if (m_client) {
 		jack_deactivate(m_client);
 		jack_client_close(m_client);
 		m_client = NULL;
-		signal_detached.emit();
 		destroy_all_ports();
+		signal_detached.emit();
 		m_app->status_message("[JACK] Detached");
 	}
 }
@@ -97,12 +97,12 @@ JackDriver::destroy_all_ports()
 		for (PortVector::iterator p = ports.begin(); p != ports.end(); ++p) {
 			boost::shared_ptr<PatchagePort> port = boost::dynamic_pointer_cast<PatchagePort>(*p);
 			if (port && port->type() == JACK_AUDIO || port->type() == JACK_MIDI) {
-				port.reset();
+				m->second->remove_port(port);
 			}
 		}
 
 		if (m->second->ports().empty())
-			m->second.reset();
+			m_app->canvas()->remove_module(m->second->name());
 	}
 }
 
@@ -144,8 +144,8 @@ JackDriver::refresh()
 	if (m_client == NULL) {
 		// Shutdown
 		if (m_is_dirty) {
-			signal_detached.emit();
 			destroy_all_ports();
+			signal_detached.emit();
 		}
 		m_is_dirty = false;
 		m_mutex.unlock();
diff --git a/src/LashDriver.cpp b/src/LashDriver.cpp
index 7989aa96..73478422 100644
--- a/src/LashDriver.cpp
+++ b/src/LashDriver.cpp
@@ -67,7 +67,6 @@ LashDriver::attach(bool launch_daemon)
 void
 LashDriver::detach()
 {
-	// FIXME: send some notification that we're gone??
 	m_client = NULL;
 	m_app->status_message("[LASH] Detached");
 	signal_detached.emit();
diff --git a/src/Patchage.cpp b/src/Patchage.cpp
index ace5e244..bf7ad88d 100644
--- a/src/Patchage.cpp
+++ b/src/Patchage.cpp
@@ -28,6 +28,8 @@
 #include "LashDriver.h"
 #endif
 
+// FIXME: include to avoid undefined reference to boost SP debug hooks stuff
+#include <raul/SharedPtr.h>
 
 Patchage::Patchage(int argc, char** argv)
 : 
@@ -47,6 +49,8 @@ Patchage::Patchage(int argc, char** argv)
 	m_state_manager = new StateManager();
 	m_canvas = boost::shared_ptr<PatchageFlowCanvas>(new PatchageFlowCanvas(this, 1600*2, 1200*2));
 	m_jack_driver = new JackDriver(this);
+	m_jack_driver->signal_detached.connect(sigc::mem_fun(this, &Patchage::queue_refresh));
+
 #ifdef HAVE_ALSA
 	m_alsa_driver = new AlsaDriver(this);
 #endif
@@ -108,6 +112,7 @@ Patchage::Patchage(int argc, char** argv)
 	xml->get_widget("zoom_normal_but", m_zoom_normal_button);
 	
 	update_state();
+	m_main_paned->set_position(m_main_paned->get_height() - 20);
 
 	m_canvas_scrolledwindow->add(*m_canvas);
 	//m_canvas_scrolledwindow->signal_event().connect(sigc::mem_fun(m_canvas, &FlowCanvas::scroll_event_handler));
@@ -142,7 +147,6 @@ Patchage::Patchage(int argc, char** argv)
 	m_menu_help_about->signal_activate().connect(     sigc::mem_fun(this, &Patchage::menu_help_about));
 
 	attach_menu_items();
-	m_main_paned->set_position(m_main_paned->get_height() - 20);
 	
 	m_canvas->show();
 }
@@ -231,15 +235,16 @@ Patchage::update_state()
 	for (ModuleMap::iterator i = m_canvas->modules().begin(); i != m_canvas->modules().end(); ++i)
 		(*i).second->load_location();
 
-	cerr << "[Patchage] Resizing window: (" << m_state_manager->get_window_size().x
-		<< "," << m_state_manager->get_window_size().y << ")" << endl;
+	//cerr << "[Patchage] Resizing window: (" << m_state_manager->get_window_size().x
+	//	<< "," << m_state_manager->get_window_size().y << ")" << endl;
 
 	m_main_window->resize(
 		static_cast<int>(m_state_manager->get_window_size().x),
 		static_cast<int>(m_state_manager->get_window_size().y));
 	
-	cerr << "[Patchage] Moving window: (" << m_state_manager->get_window_location().x
-		<< "," << m_state_manager->get_window_location().y << ")" << endl;
+	//cerr << "[Patchage] Moving window: (" << m_state_manager->get_window_location().x
+	//	<< "," << m_state_manager->get_window_location().y << ")" << endl;
+	
 	m_main_window->move(
 		static_cast<int>(m_state_manager->get_window_location().x),
 		static_cast<int>(m_state_manager->get_window_location().y));