diff --git a/modules/gui/src/CMakeLists.txt b/modules/gui/src/CMakeLists.txt
index 14b24e8cb4ba1b82737ddf73fffdd48c3c2e697a..b4ba16d2d6b444aff6e122dae3314dea01727da6 100644
--- a/modules/gui/src/CMakeLists.txt
+++ b/modules/gui/src/CMakeLists.txt
@@ -161,7 +161,6 @@ if (ENABLE_IMG)
 endif()
 
 set(OST_GUI_HEADERS
-change_process_name.hh
 file_browser.hh
 file_type_dialog.hh
 file_viewer.hh
@@ -172,7 +171,6 @@ scene_menu.hh
 gosty_app.hh
 main.hh
 main_area.hh
-mdi_sub_window.hh
 module_config.hh
 perspective.hh
 query_dialog.hh
@@ -180,7 +178,6 @@ remote_site_loader.hh
 scene_selection.hh
 main_window.hh
 dock_widget.hh
-main_window.hh
 dock_widget.hh
 thin_splitter.hh
 widget.hh
@@ -201,7 +198,6 @@ file_type_dialog.cc
 file_viewer.cc
 remote_loader.cc
 main.cc
-mdi_sub_window.cc
 gl_canvas.cc
 dock_widget.cc
 main_window.cc
@@ -230,7 +226,6 @@ sequence_viewer/alignment_view_object.cc
 sequence_viewer/base_view_object.cc
 sequence_viewer/sequence_view_object.cc
 gosty_app.cc
-change_process_name.cc
 main_area.cc
 query_dialog.cc
 widget_state_saver.cc
@@ -336,7 +331,6 @@ scene_menu.hh
 gosty_app.hh
 main.hh
 main_area.hh
-mdi_sub_window.hh
 perspective.hh
 query_dialog.hh
 dock_widget.hh
@@ -493,7 +487,3 @@ endif()
 
 executable(NAME gosty SOURCES gosty.cc ${OST_GOSTY_MOC} ${OST_QT_RESOURCE} 
            DEPENDS_ON gui ${LINK})
-#if (APPLE)
-#  set_source_files_properties(change_process_name.cc
-#                              PROPERTIES COMPILE_FLAGS "-ObjC++")
-#endif()
diff --git a/modules/gui/src/change_process_name.cc b/modules/gui/src/change_process_name.cc
deleted file mode 100644
index 91a7c247a7b5f688d1a0e66e7e7711baa348635c..0000000000000000000000000000000000000000
--- a/modules/gui/src/change_process_name.cc
+++ /dev/null
@@ -1,43 +0,0 @@
-//------------------------------------------------------------------------------
-// This file is part of the OpenStructure project <www.openstructure.org>
-//
-// Copyright (C) 2008-2010 by the OpenStructure authors
-//
-// This library is free software; you can redistribute it and/or modify it under
-// the terms of the GNU Lesser General Public License as published by the Free
-// Software Foundation; either version 3.0 of the License, or (at your option)
-// any later version.
-// This library is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
-// details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with this library; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-//------------------------------------------------------------------------------
-#include "change_process_name.hh"
-
-#if defined(__APPLE__) && 0
-#include <Foundation/Foundation.h>
-#endif
-
-/*
-  Author: Marco Biasini
- */
-namespace ost { namespace gui {
-  
-
-
-void ChangeProcessName(const char* proc_name)
-{
-  // commented out due to failure with scons. will be reenabled, when SCons is
-  // gone  
-#if defined(__APPLE__) && 0
-  NSString* pname=[[NSString alloc] initWithCString:proc_name 
-                                           encoding:NSASCIIStringEncoding];
-  [[NSProcessInfo processInfo] setProcessName:pname];
-#endif
-}
-
-}}
diff --git a/modules/gui/src/change_process_name.hh b/modules/gui/src/change_process_name.hh
deleted file mode 100644
index 69bf57b129e3792715194e6aae827050b37919c5..0000000000000000000000000000000000000000
--- a/modules/gui/src/change_process_name.hh
+++ /dev/null
@@ -1,35 +0,0 @@
-//------------------------------------------------------------------------------
-// This file is part of the OpenStructure project <www.openstructure.org>
-//
-// Copyright (C) 2008-2010 by the OpenStructure authors
-//
-// This library is free software; you can redistribute it and/or modify it under
-// the terms of the GNU Lesser General Public License as published by the Free
-// Software Foundation; either version 3.0 of the License, or (at your option)
-// any later version.
-// This library is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
-// details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with this library; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-//------------------------------------------------------------------------------
-#ifndef OST_GUI_CHANGE_PROCESS_NAME_HH
-#define OST_GUI_CHANGE_PROCESS_NAME_HH
-
-#include <ost/gui/module_config.hh>
-
-/*
-  Author: Marco Biasini
- */
-
-namespace ost { namespace gui {
-
-/// \brief change process name that shows up in ps and top
-void DLLEXPORT_OST_GUI ChangeProcessName(const char* proc_name);
-  
-}}
-
-#endif
diff --git a/modules/gui/src/gosty.cc b/modules/gui/src/gosty.cc
index 574d2cffdbc4d63a9f229a1983369fa05b04541d..d8ce0bc86839cf9bdf3abd212cb9a5dd4f744e4c 100644
--- a/modules/gui/src/gosty.cc
+++ b/modules/gui/src/gosty.cc
@@ -34,7 +34,7 @@
 #include "gl_win.hh"
 #include "widget_state_saver.hh"
 #include "gosty.hh"
-#include "change_process_name.hh"
+
 // must come last
 #include <QApplication>
 #include <QResource>
diff --git a/modules/gui/src/gosty_app.cc b/modules/gui/src/gosty_app.cc
index 212cb1781ac0e706c87a8813f832cc7cc4d1a285..ab1869bbe274dc9d0fc6953d9ae4305d72319a3b 100644
--- a/modules/gui/src/gosty_app.cc
+++ b/modules/gui/src/gosty_app.cc
@@ -24,7 +24,6 @@
 #include <QMenuBar>
 #include <QDesktopWidget>
 
-#include <ost/gui/mdi_sub_window.hh>
 #include <ost/gui/python_shell/python_shell.hh>
 #include <ost/gui/gl_win.hh>
 #include <ost/gui/tools/tool_options_win.hh>
diff --git a/modules/gui/src/main.cc b/modules/gui/src/main.cc
index 9abeac746c3a53ed5d99ea631814997db97e2ced..9e6df4405fa04f04804006f81256a94b4a0abff9 100644
--- a/modules/gui/src/main.cc
+++ b/modules/gui/src/main.cc
@@ -42,7 +42,6 @@
 
 #include "gl_win.hh"
 //#include "entity_explorer/entity_explorer.hh"
-#include "mdi_sub_window.hh"
 #include "tools/tool_options_win.hh"
 #include "plot_viewer/plot_viewer_proxy.hh"
 #include "plot_viewer/plot_viewer.hh"
diff --git a/modules/gui/src/mdi_sub_window.cc b/modules/gui/src/mdi_sub_window.cc
deleted file mode 100644
index d5934ae37f761d3f5fc809206c459b3411ce78a1..0000000000000000000000000000000000000000
--- a/modules/gui/src/mdi_sub_window.cc
+++ /dev/null
@@ -1,79 +0,0 @@
-//------------------------------------------------------------------------------
-// This file is part of the OpenStructure project <www.openstructure.org>
-//
-// Copyright (C) 2008-2010 by the OpenStructure authors
-//
-// This library is free software; you can redistribute it and/or modify it under
-// the terms of the GNU Lesser General Public License as published by the Free
-// Software Foundation; either version 3.0 of the License, or (at your option)
-// any later version.
-// This library is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
-// details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with this library; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-//------------------------------------------------------------------------------
-#include "mdi_sub_window.hh"
-/* 
-  Author: Andreas Schenk
- */
-namespace ost{namespace gui{
-
-OstMdiSubWindow::OstMdiSubWindow(const QString& name,QPoint pos, QSize size, 
-                                  bool visible, QWidget* parent,
-                                 Qt::WindowFlags flags):
-  OstMdiSubWindowBase(name,pos,size, visible, parent,flags)
-{
-}
-OstMdiSubWindow::OstMdiSubWindow(const QString& name, QWidget* parent,
-                                 Qt::WindowFlags flags):
-  OstMdiSubWindowBase(name,parent,flags)
-{
-}
-
-OstMdiSubWindow::~OstMdiSubWindow()
-{
-}
-
-void OstMdiSubWindow::closeEvent( QCloseEvent * event )
-{
-  hide();
-}
-void OstMdiSubWindow::setVisible(bool visible)
-{
-  OstMdiSubWindowBase::setVisible(visible);
-  emit OnSetVisible(visible);
-}
-
-
-
-OstTopWindow::OstTopWindow(const QString& name,QPoint pos, QSize size, bool vis,
-                           QWidget* parent ,Qt::WindowFlags flags):
-  OstTopWindowBase(name,pos,size,vis,parent,flags)
-{
-}
-OstTopWindow::OstTopWindow(const QString& name, QWidget* parent,
-                           Qt::WindowFlags flags):
-  OstTopWindowBase(name,parent,flags)
-{
-}
-
-OstTopWindow::~OstTopWindow()
-{
-}
-
-void OstTopWindow::closeEvent( QCloseEvent * event )
-{
-  hide();
-}
-
-void OstTopWindow::setVisible(bool visible)
-{
-  OstTopWindowBase::setVisible(visible);
-  emit OnSetVisible(visible);
-}
-
-}}//ns
diff --git a/modules/gui/src/mdi_sub_window.hh b/modules/gui/src/mdi_sub_window.hh
deleted file mode 100644
index 82c2ed4c08475b2faec52fdfaae7bfec15468ca7..0000000000000000000000000000000000000000
--- a/modules/gui/src/mdi_sub_window.hh
+++ /dev/null
@@ -1,71 +0,0 @@
-//------------------------------------------------------------------------------
-// This file is part of the OpenStructure project <www.openstructure.org>
-//
-// Copyright (C) 2008-2010 by the OpenStructure authors
-//
-// This library is free software; you can redistribute it and/or modify it under
-// the terms of the GNU Lesser General Public License as published by the Free
-// Software Foundation; either version 3.0 of the License, or (at your option)
-// any later version.
-// This library is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
-// details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with this library; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-//------------------------------------------------------------------------------
-#ifndef OST_MDI_SUB_WINDOW_HH_
-#define OST_MDI_SUB_WINDOW_HH_
-
-/*
-  Author: Andreas Schenk
- */
-
-#include <QMdiSubWindow>
-#include <QMainWindow>
-
-#include "widget_state_saver.hh"
-
-namespace ost{namespace gui{
-
-typedef WidgetStateSaver<QMdiSubWindow,Qt::WindowFlags> OstMdiSubWindowBase;
-
-class OstMdiSubWindow: public OstMdiSubWindowBase
-{
-  Q_OBJECT;
-public:
-  OstMdiSubWindow(const QString& name,QPoint pos, QSize size, bool visible,
-                  QWidget* parent, Qt::WindowFlags flags);
-  OstMdiSubWindow(const QString& name, QWidget* parent, Qt::WindowFlags flags);
-  virtual ~OstMdiSubWindow();
-public slots:
-  virtual void setVisible(bool visible=true);
-signals:
-  void OnSetVisible(bool visible);
-protected:
-  virtual void closeEvent( QCloseEvent * event );
-};
-
-typedef WidgetStateSaver<QMainWindow,Qt::WindowFlags> OstTopWindowBase;
-
-class OstTopWindow: public OstTopWindowBase
-{
-  Q_OBJECT;
-public:
-  OstTopWindow(const QString& name,QPoint pos, QSize size, bool visible,
-               QWidget* parent, Qt::WindowFlags flags);
-  OstTopWindow(const QString& name, QWidget* parent ,Qt::WindowFlags flags);
-  virtual ~OstTopWindow();
-public slots:
-  virtual void setVisible(bool visible=true);
-signals:
-  void OnSetVisible(bool visible);
-protected:
-  virtual void closeEvent( QCloseEvent * event );
-};
-
-}}//ns
-
-#endif /*OST_MDI_SUB_WINDOW_HH_*/
diff --git a/modules/gui/src/test_code.cc b/modules/gui/src/test_code.cc
deleted file mode 100644
index ac01ef1a1542b3a17c4a321941807cd15c95cb01..0000000000000000000000000000000000000000
--- a/modules/gui/src/test_code.cc
+++ /dev/null
@@ -1,71 +0,0 @@
-//------------------------------------------------------------------------------
-// This file is part of the OpenStructure project <www.openstructure.org>
-//
-// Copyright (C) 2008-2010 by the OpenStructure authors
-//
-// This library is free software; you can redistribute it and/or modify it under
-// the terms of the GNU Lesser General Public License as published by the Free
-// Software Foundation; either version 3.0 of the License, or (at your option)
-// any later version.
-// This library is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
-// details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with this library; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-//------------------------------------------------------------------------------
-#include <cstdlib>
-
-#include "test_code.hh"
-
-#include <ost/log.hh>
-#include <ost/entity.hh>
-#include <ost/gfx/scene.hh>
-#include <ost/gfx/entity_connect.hh>
-
-using namespace ost;
-using namespace ost::gfx;
-
-namespace {
-
-mol::EntityHandle build_entity()
-{
-  mol::EntityHandle e = CreateEntity();
-
-  mol::ChainHandle chain = e.InsertChain("");
-
-  mol::ResidueHandle res = chain.AppendResidue("");
-
-  mol::AtomHandle a0 = res.InsertAtom("X",geom::Vec3(0.0,0.0,0.0));
-  mol::AtomHandle a1 = res.InsertAtom("X",geom::Vec3(0.0,0.0,10.0));
-  mol::AtomHandle a2 = res.InsertAtom("X",geom::Vec3(10.0,0.0,10.0));
-  mol::AtomHandle a3 = res.InsertAtom("X",geom::Vec3(10.0,-10.0,10.0));
-  mol::AtomHandle a4 = res.InsertAtom("X",geom::Vec3(10.0,0.0,10.0));
-  mol::AtomHandle a5 = res.InsertAtom("X",geom::Vec3(10.0,0.0,20.0));
-  //mol::AtomHandle a6 = res.InsertAtom(geom::Vec3(10.0,-10.0,20.0));
-  //mol::AtomHandle a7 = res.InsertAtom(geom::Vec3(20.0,0.0,20.0));
-  e.Connect(a0,a1);
-  e.Connect(a1,a2);
-  e.Connect(a2,a3);
-  e.Connect(a1,a4);
-  e.Connect(a2,a5);
-  //e.Connect(a5,a6);
-  //e.Connect(a5,a7);
-
-  e.RebuildICS();
-
-  return e;
-}
-
-} // anon ns
-
-void test_code()
-{
-  mol::EntityHandle eh = build_entity();
-
-  GfxObjP go (new EntityConnect("test",eh));
-  Scene::Instance().Add(go);
-  Scene::Instance().SetCenter(go->GetCenter());
-}
diff --git a/modules/gui/src/test_code.hh b/modules/gui/src/test_code.hh
deleted file mode 100644
index 0cd9a36b0b2c740e7488f013c92ba8ab01aad9a3..0000000000000000000000000000000000000000
--- a/modules/gui/src/test_code.hh
+++ /dev/null
@@ -1,24 +0,0 @@
-//------------------------------------------------------------------------------
-// This file is part of the OpenStructure project <www.openstructure.org>
-//
-// Copyright (C) 2008-2010 by the OpenStructure authors
-//
-// This library is free software; you can redistribute it and/or modify it under
-// the terms of the GNU Lesser General Public License as published by the Free
-// Software Foundation; either version 3.0 of the License, or (at your option)
-// any later version.
-// This library is distributed in the hope that it will be useful, but WITHOUT
-// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-// FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
-// details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with this library; if not, write to the Free Software Foundation, Inc.,
-// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
-//------------------------------------------------------------------------------
-#ifndef OST_TEST_CODE_HH
-#define OST_TEST_CODE_HH
-
-void test_code();
-
-#endif
diff --git a/modules/gui/src/xpm/angle_transform.svg b/modules/gui/src/xpm/angle_transform.svg
deleted file mode 100644
index b6298dec768698e96ce75e1a53e6d1673ef18e63..0000000000000000000000000000000000000000
--- a/modules/gui/src/xpm/angle_transform.svg
+++ /dev/null
@@ -1,167 +0,0 @@
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-   xmlns:svg="http://www.w3.org/2000/svg"
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-   sodipodi:version="0.32"
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-   sodipodi:docbase="/home/ansgar/projects/dng/modules/gui/src/xpm"
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diff --git a/modules/gui/src/xpm/angle_transform.xpm b/modules/gui/src/xpm/angle_transform.xpm
deleted file mode 100644
index 4acf8c79989c8cbaafa0cd3e629f2af0d802257b..0000000000000000000000000000000000000000
--- a/modules/gui/src/xpm/angle_transform.xpm
+++ /dev/null
@@ -1,289 +0,0 @@
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diff --git a/modules/gui/src/xpm/ost_small.xpm b/modules/gui/src/xpm/ost_small.xpm
deleted file mode 100644
index 3a9e8ea213534c7d96046533d68442431199db51..0000000000000000000000000000000000000000
--- a/modules/gui/src/xpm/ost_small.xpm
+++ /dev/null
@@ -1,370 +0,0 @@
-/* XPM */
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deleted file mode 100644
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