diff --git a/core/gui/problem_table.py b/core/gui/problem_table.py
index f283f0eb..62b04721 100644
--- a/core/gui/problem_table.py
+++ b/core/gui/problem_table.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # Created By: Virgil Dupras
 # Created On: 2010-04-12
 # Copyright 2011 Hardcoded Software (http://www.hardcoded.net)
@@ -9,11 +8,21 @@
 
 from hscommon.notify import Listener
 from hscommon.gui.table import GUITable, Row
+from hscommon.gui.column import Column, Columns
+from hscommon.trans import trget
+
+coltr = trget('columns')
 
 class ProblemTable(GUITable, Listener):
+    COLUMNS = [
+        Column('path', coltr("File Path")),
+        Column('msg', coltr("Error Message")),
+    ]
+    
     def __init__(self, view, problem_dialog):
         GUITable.__init__(self)
         Listener.__init__(self, problem_dialog)
+        self.columns = Columns(self)
         self.view = view
         self.dialog = problem_dialog
     
diff --git a/qt/base/app.py b/qt/base/app.py
index c941eac3..725ebf9b 100644
--- a/qt/base/app.py
+++ b/qt/base/app.py
@@ -53,6 +53,12 @@ class DupeGuru(QObject):
     LOGO_NAME = '<replace this>'
     NAME = '<replace this>'
     
+    DETAILS_DIALOG_CLASS = None
+    RESULT_WINDOW_CLASS = ResultWindow
+    RESULT_MODEL_CLASS = None
+    PREFERENCES_CLASS = None
+    PREFERENCES_DIALOG_CLASS = None
+    
     def __init__(self):
         QObject.__init__(self)
         appdata = str(QDesktopServices.storageLocation(QDesktopServices.DataLocation))
@@ -65,7 +71,7 @@ class DupeGuru(QObject):
             sys.stderr = SysWrapper()
         if sys.stdout is None:
             sys.stdout = SysWrapper()
-        self.prefs = self._create_preferences()
+        self.prefs = self.PREFERENCES_CLASS()
         self.prefs.load()
         self.model = self.MODELCLASS(view=self, appdata=appdata)
         self._setup()
@@ -77,12 +83,12 @@ class DupeGuru(QObject):
         self._update_options()
         self.recentResults = Recent(self, 'recentResults')
         self.recentResults.mustOpenItem.connect(self.model.load_from)
-        self.resultWindow = self._create_result_window()
+        self.resultWindow = self.RESULT_WINDOW_CLASS(self)
         self._progress = Progress(self.resultWindow)
         self.directories_dialog = DirectoriesDialog(self.resultWindow, self)
-        self.details_dialog = self._create_details_dialog(self.resultWindow)
+        self.details_dialog = self.DETAILS_DIALOG_CLASS(self.resultWindow, self)
         self.problemDialog = ProblemDialog(parent=self.resultWindow, app=self)
-        self.preferences_dialog = self._create_preferences_dialog(self.resultWindow)
+        self.preferences_dialog = self.PREFERENCES_DIALOG_CLASS(self.resultWindow, self)
         self.about_box = AboutBox(self.resultWindow, self)
                 
         self.directories_dialog.show()
@@ -119,19 +125,6 @@ class DupeGuru(QObject):
         self.model.options['clean_empty_dirs'] = self.prefs.remove_empty_folders
         self.model.options['ignore_hardlink_matches'] = self.prefs.ignore_hardlink_matches
     
-    #--- Virtual
-    def _create_details_dialog(self, parent):
-        raise NotImplementedError()
-    
-    def _create_result_window(self):
-        return ResultWindow(app=self)
-    
-    def _create_preferences(self):
-        raise NotImplementedError()
-    
-    def _create_preferences_dialog(self, parent):
-        raise NotImplementedError()
-    
     #--- Public
     def add_selected_to_ignore_list(self):
         dupes = self.model.without_ref(self.model.selected_dupes)
diff --git a/qt/base/preferences.py b/qt/base/preferences.py
index f57c507d..2a42e85e 100644
--- a/qt/base/preferences.py
+++ b/qt/base/preferences.py
@@ -11,13 +11,6 @@ from PyQt4.QtGui import QApplication
 from qtlib.preferences import Preferences as PreferencesBase
 
 class Preferences(PreferencesBase):
-    # (width, is_visible)
-    COLUMNS_DEFAULT_ATTRS = []
-    
-    def __init__(self):
-        PreferencesBase.__init__(self)
-        self.reset_columns()
-    
     def _load_specific(self, settings):
         # load prefs specific to the dg edition
         pass
@@ -34,13 +27,6 @@ class Preferences(PreferencesBase):
         self.custom_command = get('CustomCommand', self.custom_command)
         self.language = get('Language', self.language)
         
-        widths = get('ColumnsWidth', self.columns_width)
-        # only set nonzero values
-        for index, width in enumerate(widths[:len(self.columns_width)]):
-            if width > 0:
-                self.columns_width[index] = width
-        self.columns_visible = get('ColumnsVisible', self.columns_visible)
-        
         self.tableFontSize = get('TableFontSize', self.tableFontSize)
         self.resultWindowIsMaximized = get('ResultWindowIsMaximized', self.resultWindowIsMaximized)
         self.resultWindowRect = self.get_rect('ResultWindowRect', self.resultWindowRect)
@@ -76,10 +62,6 @@ class Preferences(PreferencesBase):
         
         self._reset_specific()
     
-    def reset_columns(self):
-        self.columns_width = [width for width, _ in self.COLUMNS_DEFAULT_ATTRS]
-        self.columns_visible = [visible for _, visible in self.COLUMNS_DEFAULT_ATTRS]
-    
     def _save_specific(self, settings):
         # save prefs specific to the dg edition
         pass
@@ -94,8 +76,6 @@ class Preferences(PreferencesBase):
         set_('DebugMode', self.debug_mode)
         set_('DestinationType', self.destination_type)
         set_('CustomCommand', self.custom_command)
-        set_('ColumnsWidth', self.columns_width)
-        set_('ColumnsVisible', self.columns_visible)
         set_('Language', self.language)
         
         set_('TableFontSize', self.tableFontSize)
diff --git a/qt/base/problem_table.py b/qt/base/problem_table.py
index 9b814380..96444afc 100644
--- a/qt/base/problem_table.py
+++ b/qt/base/problem_table.py
@@ -6,17 +6,14 @@
 # which should be included with this package. The terms are also available at 
 # http://www.hardcoded.net/licenses/bsd_license
 
-from hscommon.trans import trget
 from qtlib.column import Column
 from qtlib.table import Table
 from core.gui.problem_table import ProblemTable as ProblemTableModel
 
-tr = trget('ui')
-
 class ProblemTable(Table):
     COLUMNS = [
-        Column('path', tr("File Path"), 150),
-        Column('msg', tr("Error Message"), 150),
+        Column('path', defaultWidth=150),
+        Column('msg', defaultWidth=150),
     ]
     
     def __init__(self, problem_dialog, view):
diff --git a/qt/base/result_window.py b/qt/base/result_window.py
index 1115bddb..d0de8b25 100644
--- a/qt/base/result_window.py
+++ b/qt/base/result_window.py
@@ -7,16 +7,16 @@
 # http://www.hardcoded.net/licenses/bsd_license
 
 from PyQt4.QtCore import Qt, SIGNAL, QUrl, QRect
-from PyQt4.QtGui import (QMainWindow, QMenu, QLabel, QHeaderView, QMessageBox, QInputDialog,
-    QLineEdit, QDesktopServices, QFileDialog, QMenuBar, QWidget, QVBoxLayout, QAbstractItemView,
-    QStatusBar, QDialog)
+from PyQt4.QtGui import (QMainWindow, QMenu, QLabel, QMessageBox, QInputDialog, QLineEdit,
+    QDesktopServices, QFileDialog, QMenuBar, QWidget, QVBoxLayout, QAbstractItemView, QStatusBar,
+    QDialog)
 
 from hscommon.plat import ISOSX, ISLINUX
 from hscommon.trans import trget
 from hscommon.util import nonone
 from qtlib.util import moveToScreenCenter
 
-from .results_model import ResultsModel, ResultsView
+from .results_model import ResultsView
 from .stats_label import StatsLabel
 from .util import createActions
 from .prioritize_dialog import PrioritizeDialog
@@ -29,9 +29,8 @@ class ResultWindow(QMainWindow):
         self.app = app
         self._last_filter = None
         self._setupUi()
-        self.resultsModel = ResultsModel(self.app, self.resultsView) 
+        self.resultsModel = app.RESULT_MODEL_CLASS(self.app, self.resultsView)
         self.stats = StatsLabel(app, self.statusLabel)
-        self._load_columns()
         self._update_column_actions_status()
         
         self.connect(self.menuColumns, SIGNAL('triggered(QAction*)'), self.columnToggled)
@@ -141,14 +140,15 @@ class ResultWindow(QMainWindow):
         # Columns menu
         menu = self.menuColumns
         self._column_actions = []
-        for index, column in enumerate(self.app.model.COLUMNS):
-            action = menu.addAction(column.display)
+        for index, (display, visible) in enumerate(self.app.model.result_table.columns.menu_items()):
+            action = menu.addAction(display)
             action.setCheckable(True)
-            action.column_index = index
+            action.setChecked(visible)
+            action.item_index = index
             self._column_actions.append(action)
         menu.addSeparator()
         action = menu.addAction(tr("Reset to Defaults"))
-        action.column_index = -1
+        action.item_index = -1
         
         # Action menu
         actionMenu = QMenu(tr("Actions"), self.menubar)
@@ -203,21 +203,11 @@ class ResultWindow(QMainWindow):
                 moveToScreenCenter(self)
     
     #--- Private
-    def _load_columns(self):
-        h = self.resultsView.horizontalHeader()
-        h.setResizeMode(QHeaderView.Interactive)
-        prefs = self.app.prefs
-        attrs = list(zip(prefs.columns_width, prefs.columns_visible))
-        for index, (width, visible) in enumerate(attrs):
-            h.resizeSection(index, width)
-            h.setSectionHidden(index, not visible)
-        h.setResizeMode(0, QHeaderView.Stretch)
-    
     def _update_column_actions_status(self):
-        h = self.resultsView.horizontalHeader()
-        for action in self._column_actions:
-            colid = action.column_index
-            action.setChecked(not h.isSectionHidden(colid))
+        # Update menu checked state
+        menu_items = self.app.model.result_table.columns.menu_items()
+        for action, (display, visible) in zip(self._column_actions, menu_items):
+            action.setChecked(visible)
     
     #--- Actions
     def actionsTriggered(self):
@@ -352,26 +342,17 @@ class ResultWindow(QMainWindow):
     #--- Events
     def appWillSavePrefs(self):
         prefs = self.app.prefs
-        h = self.resultsView.horizontalHeader()
-        widths = []
-        visible = []
-        for i in range(len(self.app.model.COLUMNS)):
-            widths.append(h.sectionSize(i))
-            visible.append(not h.isSectionHidden(i))
-        prefs.columns_width = widths
-        prefs.columns_visible = visible
         prefs.resultWindowIsMaximized = self.isMaximized()
         prefs.resultWindowRect = self.geometry()
     
     def columnToggled(self, action):
-        colid = action.column_index
-        if colid == -1:
-            self.app.prefs.reset_columns()
-            self._load_columns()
+        index = action.item_index
+        if index == -1:
+            self.app.model.result_table.columns.reset_to_defaults()
+            self._update_column_actions_status()
         else:
-            h = self.resultsView.horizontalHeader()
-            h.setSectionHidden(colid, not h.isSectionHidden(colid))
-        self._update_column_actions_status()
+            visible = self.app.model.result_table.columns.toggle_menu_item(index)
+            action.setChecked(visible)
     
     def contextMenuEvent(self, event):
         self.actionActions.menu().exec_(event.globalPos())
diff --git a/qt/base/results_model.py b/qt/base/results_model.py
index 5123f60f..28f80dd5 100644
--- a/qt/base/results_model.py
+++ b/qt/base/results_model.py
@@ -15,31 +15,31 @@ from core.gui.result_table import ResultTable as ResultTableModel
 
 class ResultsModel(Table):
     def __init__(self, app, view):
-        model = ResultTableModel(self, app.model)
-        self._app = app.model
-        self._delta_columns = app.model.DELTA_COLUMNS
+        model = app.model.result_table
         Table.__init__(self, model, view)
         self.model.connect()
         
         app.prefsChanged.connect(self.appPrefsChanged)
+        app.willSavePrefs.connect(self.appWillSavePrefs)
     
     def columnCount(self, parent):
-        return len(self._app.COLUMNS)
+        return len(self.model.COLUMNS)
     
     def data(self, index, role):
         if not index.isValid():
             return None
         row = self.model[index.row()]
+        column = self.model.COLUMNS[index.column()]
         if role == Qt.DisplayRole:
             data = row.data_delta if self.model.delta_values else row.data
-            return data[index.column()]
+            return data[column.name]
         elif role == Qt.CheckStateRole:
             if index.column() == 0 and row.markable:
                 return Qt.Checked if row.marked else Qt.Unchecked
         elif role == Qt.ForegroundRole:
             if row.isref:
                 return QBrush(Qt.blue)
-            elif self.model.delta_values and index.column() in self._delta_columns:
+            elif self.model.delta_values and column.name in self.model.DELTA_COLUMNS:
                 return QBrush(QColor(255, 142, 40)) # orange
         elif role == Qt.FontRole:
             isBold = row.isref
@@ -47,8 +47,8 @@ class ResultsModel(Table):
             font.setBold(isBold)
             return font
         elif role == Qt.EditRole:
-            if index.column() == 0:
-                return row.data[index.column()]
+            if column.name == 'name':
+                return row.data[column.name]
         return None
     
     def flags(self, index):
@@ -64,26 +64,28 @@ class ResultsModel(Table):
     
     def headerData(self, section, orientation, role):
         if role == Qt.DisplayRole:
-            if orientation == Qt.Horizontal and section < len(self._app.COLUMNS):
-                return self._app.COLUMNS[section].display
+            if orientation == Qt.Horizontal and section < len(self.model.COLUMNS):
+                return self.model.COLUMNS[section].display
         return None
     
     def setData(self, index, value, role):
         if not index.isValid():
             return False
         row = self.model[index.row()]
+        column = self.model.COLUMNS[index.column()]
         if role == Qt.CheckStateRole:
-            if index.column() == 0:
-                self._app.mark_dupe(row._dupe, value.toBool())
+            if column.name == 'name':
+                self.model.app.mark_dupe(row._dupe, value.toBool())
                 return True
         elif role == Qt.EditRole:
-            if index.column() == 0:
+            if column.name == 'name':
                 value = str(value.toString())
                 return self.model.rename_selected(value)
         return False
     
     def sort(self, column, order):
-        self.model.sort(column, order == Qt.AscendingOrder)
+        column = self.model.COLUMNS[column]
+        self.model.sort(column.name, order == Qt.AscendingOrder)
     
     #--- Properties
     @property
@@ -110,6 +112,9 @@ class ResultsModel(Table):
         fm = QFontMetrics(font)
         self.view.verticalHeader().setDefaultSectionSize(fm.height()+2)
     
+    def appWillSavePrefs(self):
+        self.model.columns.save_columns()
+    
     #--- model --> view
     def invalidate_markings(self):
         # redraw view
diff --git a/qt/me/app.py b/qt/me/app.py
index a647ea08..3d2e3554 100644
--- a/qt/me/app.py
+++ b/qt/me/app.py
@@ -11,6 +11,7 @@ from core_me.app import DupeGuru as DupeGuruModel
 
 from ..base.app import DupeGuru as DupeGuruBase
 from .details_dialog import DetailsDialog
+from .results_model import ResultsModel
 from .preferences import Preferences
 from .preferences_dialog import PreferencesDialog
 
@@ -20,6 +21,11 @@ class DupeGuru(DupeGuruBase):
     LOGO_NAME = 'logo_me'
     NAME = __appname__
     
+    DETAILS_DIALOG_CLASS = DetailsDialog
+    RESULT_MODEL_CLASS = ResultsModel
+    PREFERENCES_CLASS = Preferences
+    PREFERENCES_DIALOG_CLASS = PreferencesDialog
+    
     def _update_options(self):
         DupeGuruBase._update_options(self)
         self.model.scanner.min_match_percentage = self.prefs.filter_hardness
@@ -41,12 +47,3 @@ class DupeGuru(DupeGuruBase):
             scanned_tags.add('year')
         self.model.scanner.scanned_tags = scanned_tags
     
-    def _create_details_dialog(self, parent):
-        return DetailsDialog(parent, self)
-    
-    def _create_preferences(self):
-        return Preferences()
-    
-    def _create_preferences_dialog(self, parent):
-        return PreferencesDialog(parent, self)
-    
diff --git a/qt/me/preferences.py b/qt/me/preferences.py
index 14a29123..94f177fa 100644
--- a/qt/me/preferences.py
+++ b/qt/me/preferences.py
@@ -11,28 +11,6 @@ from core.scanner import ScanType
 from ..base.preferences import Preferences as PreferencesBase
 
 class Preferences(PreferencesBase):
-    # (width, is_visible)
-    COLUMNS_DEFAULT_ATTRS = [ 
-        (200, True), # name
-        (180, True), # path
-        (60, True), # size
-        (60, True), # Time
-        (50, True), # Bitrate
-        (60, False), # Sample Rate
-        (40, False), # Kind
-        (120, False), # modification
-        (120, False), # Title
-        (120, False), # Artist
-        (120, False), # Album
-        (80, False), # Genre
-        (40, False), # Year
-        (40, False), # Track Number
-        (120, False), # Comment
-        (60, True), # match %
-        (120, False), # Words Used
-        (80, False), # dupe count
-    ]
-    
     def _load_specific(self, settings):
         get = self.get_value
         self.scan_type = get('ScanType', self.scan_type)
diff --git a/qt/pe/app.py b/qt/pe/app.py
index 92020f0b..74be6f8c 100644
--- a/qt/pe/app.py
+++ b/qt/pe/app.py
@@ -18,6 +18,7 @@ from ..base.app import DupeGuru as DupeGuruBase
 from .block import getblocks
 from .details_dialog import DetailsDialog
 from .result_window import ResultWindow
+from .results_model import ResultsModel
 from .preferences import Preferences
 from .preferences_dialog import PreferencesDialog
 
@@ -70,6 +71,12 @@ class DupeGuru(DupeGuruBase):
     LOGO_NAME = 'logo_pe'
     NAME = __appname__
     
+    DETAILS_DIALOG_CLASS = DetailsDialog
+    RESULT_WINDOW_CLASS = ResultWindow
+    RESULT_MODEL_CLASS = ResultsModel
+    PREFERENCES_CLASS = Preferences
+    PREFERENCES_DIALOG_CLASS = PreferencesDialog
+    
     def _setup(self):
         self.model.directories.fileclasses = [File]
         DupeGuruBase._setup(self)
@@ -80,15 +87,3 @@ class DupeGuru(DupeGuruBase):
         self.model.scanner.match_scaled = self.prefs.match_scaled
         self.model.scanner.threshold = self.prefs.filter_hardness
     
-    def _create_details_dialog(self, parent):
-        return DetailsDialog(parent, self)
-    
-    def _create_result_window(self):
-        return ResultWindow(app=self)
-    
-    def _create_preferences(self):
-        return Preferences()
-    
-    def _create_preferences_dialog(self, parent):
-        return PreferencesDialog(parent, self)
-    
diff --git a/qt/pe/preferences.py b/qt/pe/preferences.py
index effa1126..154d2601 100644
--- a/qt/pe/preferences.py
+++ b/qt/pe/preferences.py
@@ -11,18 +11,6 @@ from core.scanner import ScanType
 from ..base.preferences import Preferences as PreferencesBase
 
 class Preferences(PreferencesBase):
-    # (width, is_visible)
-    COLUMNS_DEFAULT_ATTRS = [ 
-        (200, True), # name
-        (180, True), # path
-        (60, True), # size
-        (40, False), # kind
-        (100, True), # dimensions
-        (120, False), # modification
-        (60, True), # match %
-        (80, False), # dupe count
-    ]
-    
     def _load_specific(self, settings):
         get = self.get_value
         self.scan_type = get('ScanType', self.scan_type)
diff --git a/qt/se/app.py b/qt/se/app.py
index 8b82c893..6b8080dc 100644
--- a/qt/se/app.py
+++ b/qt/se/app.py
@@ -12,6 +12,7 @@ from core.directories import Directories as DirectoriesBase, DirectoryState
 
 from ..base.app import DupeGuru as DupeGuruBase
 from .details_dialog import DetailsDialog
+from .results_model import ResultsModel
 from .preferences import Preferences
 from .preferences_dialog import PreferencesDialog
 
@@ -30,6 +31,11 @@ class DupeGuru(DupeGuruBase):
     LOGO_NAME = 'logo_se'
     NAME = __appname__
     
+    DETAILS_DIALOG_CLASS = DetailsDialog
+    RESULT_MODEL_CLASS = ResultsModel
+    PREFERENCES_CLASS = Preferences
+    PREFERENCES_DIALOG_CLASS = PreferencesDialog
+    
     def _setup(self):
         self.directories = Directories()
         DupeGuruBase._setup(self)
@@ -43,12 +49,3 @@ class DupeGuru(DupeGuruBase):
         threshold = self.prefs.small_file_threshold if self.prefs.ignore_small_files else 0
         self.model.scanner.size_threshold = threshold * 1024 # threshold is in KB. the scanner wants bytes
     
-    def _create_details_dialog(self, parent):
-        return DetailsDialog(parent, self)
-    
-    def _create_preferences(self):
-        return Preferences()
-    
-    def _create_preferences_dialog(self, parent):
-        return PreferencesDialog(parent, self)
-    
diff --git a/qt/se/preferences.py b/qt/se/preferences.py
index b243c93b..dce59c2f 100644
--- a/qt/se/preferences.py
+++ b/qt/se/preferences.py
@@ -11,18 +11,6 @@ from core.scanner import ScanType
 from ..base.preferences import Preferences as PreferencesBase
 
 class Preferences(PreferencesBase):
-    # (width, is_visible)
-    COLUMNS_DEFAULT_ATTRS = [ 
-        (200, True), # name
-        (180, True), # path
-        (60, True), # size
-        (40, False), # Kind
-        (120, False), # modification
-        (60, True), # match %
-        (120, False), # Words Used
-        (80, False), # dupe count
-    ]
-    
     def _load_specific(self, settings):
         get = self.get_value
         self.scan_type = get('ScanType', self.scan_type)