diff --git a/plugins/patman/patman.cpp b/plugins/patman/patman.cpp
index 0bb8a887b..2cdec4d91 100644
--- a/plugins/patman/patman.cpp
+++ b/plugins/patman/patman.cpp
@@ -2,7 +2,7 @@
  * patman.cpp - a GUS-compatible patch instrument plugin
  *
  * Copyright (c) 2007-2008 Javier Serrano Polo <jasp00/at/users.sourceforge.net>
- * Copyright (c) 2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * Copyright (c) 2009-2011 Tobias Doerffel <tobydox/at/users.sourceforge.net>
  * 
  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
  *
@@ -308,7 +308,7 @@ patmanInstrument::LoadErrors patmanInstrument::loadPatch(
 				short sample;
 				if ( fread( &sample, 2, 1, fd ) != 1 )
 				{
-					delete wave_samples;
+					delete[] wave_samples;
 					fclose( fd );
 					return LoadIO;
 				}
@@ -332,7 +332,7 @@ patmanInstrument::LoadErrors patmanInstrument::loadPatch(
 				char sample;
 				if ( fread( &sample, 1, 1, fd ) != 1 )
 				{
-					delete wave_samples;
+					delete[] wave_samples;
 					fclose( fd );
 					return LoadIO;
 				}
diff --git a/plugins/zynaddsubfx/src/Synth/OscilGen.cpp b/plugins/zynaddsubfx/src/Synth/OscilGen.cpp
index 97eb74659..9eb609850 100644
--- a/plugins/zynaddsubfx/src/Synth/OscilGen.cpp
+++ b/plugins/zynaddsubfx/src/Synth/OscilGen.cpp
@@ -1040,7 +1040,7 @@ void OscilGen::adaptiveharmonicpostprocess(REALTYPE *f, int size)
         }
     }
 
-    delete (inf);
+    delete[] inf;
 }
 
 
diff --git a/src/gui/MainWindow.cpp b/src/gui/MainWindow.cpp
index 2f438b478..290367243 100644
--- a/src/gui/MainWindow.cpp
+++ b/src/gui/MainWindow.cpp
@@ -1,7 +1,7 @@
 /*
  * MainWindow.cpp - implementation of LMMS' main window
  *
- * Copyright (c) 2004-2010 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * Copyright (c) 2004-2011 Tobias Doerffel <tobydox/at/users.sourceforge.net>
  *
  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
  *
@@ -481,7 +481,6 @@ void MainWindow::finalize()
 	gridButtons_layout->addWidget( fx_mixer_window, 1, 5 );
 	gridButtons_layout->addWidget( project_notes_window, 1, 6 );
 	gridButtons_layout->addWidget( controllers_window, 1, 7 );
-	gridButtons_layout->addWidget( controllers_window, 1, 7 );
 	gridButtons_layout->setColumnStretch( 100, 1 );
 
 
diff --git a/src/gui/widgets/EffectRackView.cpp b/src/gui/widgets/EffectRackView.cpp
index bd59656b6..4d39685d7 100644
--- a/src/gui/widgets/EffectRackView.cpp
+++ b/src/gui/widgets/EffectRackView.cpp
@@ -2,7 +2,7 @@
  * EffectRackView.cpp - view for effectChain model
  *
  * Copyright (c) 2006-2007 Danny McRae <khjklujn@netscape.net>
- * Copyright (c) 2008-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * Copyright (c) 2008-2011 Tobias Doerffel <tobydox/at/users.sourceforge.net>
  *
  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
  *
@@ -188,7 +188,7 @@ void EffectRackView::update()
 							view_map[i] == false )
 		{
 			delete m_effectViews[i];
-			m_effectViews.erase( it );
+			it = m_effectViews.erase( it );
 		}
 		else
 		{
diff --git a/src/gui/widgets/rubberband.cpp b/src/gui/widgets/rubberband.cpp
index 1c139628d..007a6b67f 100644
--- a/src/gui/widgets/rubberband.cpp
+++ b/src/gui/widgets/rubberband.cpp
@@ -2,7 +2,7 @@
  * rubberband.cpp - rubberband - either own implementation for Qt3 or wrapper
  *                               for Qt4
  *
- * Copyright (c) 2006 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * Copyright (c) 2006-2011 Tobias Doerffel <tobydox/at/users.sourceforge.net>
  * 
  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
  *
@@ -51,7 +51,7 @@ QVector<selectableObject *> rubberBand::selectedObjects() const
 	{
 		if( ( *it )->isSelected() == false )
 		{
-			so.erase( it );
+			it = so.erase( it );
 		}
 		else
 		{
diff --git a/src/tracks/InstrumentTrack.cpp b/src/tracks/InstrumentTrack.cpp
index 7f3571446..b31ea3e9d 100644
--- a/src/tracks/InstrumentTrack.cpp
+++ b/src/tracks/InstrumentTrack.cpp
@@ -2,7 +2,7 @@
  * InstrumentTrack.cpp - implementation of instrument-track-class
  *                        (window + data-structures)
  *
- * Copyright (c) 2004-2010 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * Copyright (c) 2004-2011 Tobias Doerffel <tobydox/at/users.sourceforge.net>
  *
  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
  *
@@ -645,7 +645,7 @@ bool InstrumentTrack::play( const midiTime & _start,
 		// get all notes from the given pattern...
 		const NoteVector & notes = p->notes();
 		// ...and set our index to zero
-		NoteVector::ConstIterator it = notes.begin();
+		NoteVector::ConstIterator nit = notes.begin();
 #if LMMS_SINGERBOT_SUPPORT
 		int note_idx = 0;
 #endif
@@ -657,21 +657,21 @@ bool InstrumentTrack::play( const midiTime & _start,
 		if( cur_start > 0 )
 		{
 			// skip notes which are posated before start-tact
-			while( it != notes.end() && ( *it )->pos() < cur_start )
+			while( nit != notes.end() && ( *nit )->pos() < cur_start )
 			{
 #if LMMS_SINGERBOT_SUPPORT
-				if( ( *it )->length() != 0 )
+				if( ( *nit )->length() != 0 )
 				{
 					++note_idx;
 				}
 #endif
-				++it;
+				++nit;
 			}
 		}
 
 		note * cur_note;
-		while( it != notes.end() &&
-					( cur_note = *it )->pos() == cur_start )
+		while( nit != notes.end() &&
+					( cur_note = *nit )->pos() == cur_start )
 		{
 			if( cur_note->length() != 0 )
 			{
@@ -694,7 +694,7 @@ bool InstrumentTrack::play( const midiTime & _start,
 				++note_idx;
 #endif
 			}
-			++it;
+			++nit;
 		}
 	}
 	return played_a_note;