diff --git a/gtk2_ardour/main.cc b/gtk2_ardour/main.cc
index 05203b4133..3d9fd057f8 100644
--- a/gtk2_ardour/main.cc
+++ b/gtk2_ardour/main.cc
@@ -191,7 +191,7 @@ int main (int argc, char *argv[])
 #endif
 
 {
-	ARDOUR::AudioEngine *engine;
+	ARDOUR::AudioEngine *engine = NULL;
 	vector<Glib::ustring> null_file_list;
 
         Glib::thread_init();
@@ -251,7 +251,7 @@ int main (int argc, char *argv[])
 
 	PBD::ID::init ();
 
-        try { 
+	try { 
 		ui = new ARDOUR_UI (&argc, &argv, which_ui_rcfile());
 	} catch (failed_constructor& err) {
 		error << _("could not create ARDOUR GUI") << endmsg;
@@ -270,7 +270,7 @@ int main (int argc, char *argv[])
 	}
 
     try {
-		ARDOUR::init (*engine, use_vst, try_hw_optimization);
+		ARDOUR::init (use_vst, try_hw_optimization);
 		setup_gtk_ardour_enums ();
 		Config->set_current_owner (ConfigVariableBase::Interface);
 		ui->setup_profile ();
@@ -282,6 +282,8 @@ int main (int argc, char *argv[])
 			error << string_compose (_("Could not connect to JACK server as  \"%1\""), jack_client_name) <<  endmsg;
 			return -1;
 		}
+
+		ARDOUR::setup_midi(*engine);
 		
 		ui->set_engine (*engine);
 
diff --git a/libs/ardour/ardour/ardour.h b/libs/ardour/ardour/ardour.h
index 332b9af733..e1be7ad998 100644
--- a/libs/ardour/ardour/ardour.h
+++ b/libs/ardour/ardour/ardour.h
@@ -44,8 +44,10 @@ namespace ARDOUR {
 
 	static const nframes_t max_frames = JACK_MAX_FRAMES;
 
-	int init (AudioEngine& engine, bool with_vst, bool try_optimization);
+	int init (bool with_vst, bool try_optimization);
 	int cleanup ();
+
+	int setup_midi(AudioEngine& engine);
 	
 	std::string get_ardour_revision ();
 	
diff --git a/libs/ardour/globals.cc b/libs/ardour/globals.cc
index ce0b333bcb..fcebe92dce 100644
--- a/libs/ardour/globals.cc
+++ b/libs/ardour/globals.cc
@@ -108,8 +108,8 @@ setup_osc ()
 }
 #endif
 
-static int 
-setup_midi (AudioEngine& engine	)
+int 
+ARDOUR::setup_midi (AudioEngine& engine)
 {
 	std::map<string,Configuration::MidiPortDescriptor*>::iterator i;
 	int nports;
@@ -286,7 +286,7 @@ setup_hardware_optimization (bool try_optimization)
 }
 
 int
-ARDOUR::init (ARDOUR::AudioEngine& engine, bool use_vst, bool try_optimization)
+ARDOUR::init (bool use_vst, bool try_optimization)
 {
 	extern void setup_enum_writer ();
 
@@ -307,10 +307,6 @@ ARDOUR::init (ARDOUR::AudioEngine& engine, bool use_vst, bool try_optimization)
 
 	Profile = new RuntimeProfile;
 
-	if (setup_midi (engine)) {
-		return -1;
-	}
-
 #ifdef HAVE_LIBLO
 	if (setup_osc ()) {
 		return -1;
diff --git a/libs/midi++2/jack_midiport.cc b/libs/midi++2/jack_midiport.cc
index 98d29351b5..3db96a214c 100644
--- a/libs/midi++2/jack_midiport.cc
+++ b/libs/midi++2/jack_midiport.cc
@@ -100,7 +100,7 @@ JACK_MidiPort::create_ports(PortRequest & req)
 	assert(!_jack_input_port);
 	assert(!_jack_output_port);
 	
-	//jack_nframes_t nframes = jack_get_buffer_size(_jack_client);
+	jack_nframes_t nframes = jack_get_buffer_size(_jack_client);
 
 	bool ret = true;
 
@@ -108,8 +108,8 @@ JACK_MidiPort::create_ports(PortRequest & req)
 		_jack_output_port = jack_port_register(_jack_client,
 			string(req.tagname).append("_out").c_str(),
 			JACK_DEFAULT_MIDI_TYPE, JackPortIsOutput, 0);
-  		//jack_midi_clear_buffer(
-		//	jack_port_get_buffer(_jack_output_port, nframes));
+  		jack_midi_clear_buffer(
+			jack_port_get_buffer(_jack_output_port, nframes));
 		ret = ret && (_jack_output_port != NULL);
 	}
 
@@ -117,8 +117,8 @@ JACK_MidiPort::create_ports(PortRequest & req)
 		_jack_input_port = jack_port_register(_jack_client,
 			string(req.tagname).append("_in").c_str(),
 			JACK_DEFAULT_MIDI_TYPE, JackPortIsInput, 0);
-  		//jack_midi_clear_buffer(
-		//	jack_port_get_buffer(_jack_input_port, nframes));
+  		jack_midi_clear_buffer(
+			jack_port_get_buffer(_jack_input_port, nframes));
 		ret = ret && (_jack_input_port != NULL);
 	}
 
diff --git a/libs/midi++2/midi++/jackcompat.h b/libs/midi++2/midi++/jackcompat.h
index f1b748ea66..bf179f7333 100644
--- a/libs/midi++2/midi++/jackcompat.h
+++ b/libs/midi++2/midi++/jackcompat.h
@@ -18,7 +18,7 @@
 #ifndef JACK_COMPAT_H
 #define JACK_COMPAT_H
 
-#define JACK_MIDI_NEEDS_NFRAMES
+//#define JACK_MIDI_NEEDS_NFRAMES
 
 #if defined(JACK_MIDI_NEEDS_NFRAMES)