diff --git a/src/gui/partresizerwidget.h b/src/gui/partresizerwidget.h
index 929223b..dbbd57d 100644
--- a/src/gui/partresizerwidget.h
+++ b/src/gui/partresizerwidget.h
@@ -1,215 +1,217 @@
 /*************************************************************************
  *  Copyright (C) 2008, 2010 by Volker Lanz <vl@fidra.de>                *
  *                                                                       *
  *  This program is free software; you can redistribute it and/or        *
  *  modify it under the terms of the GNU General Public License as       *
  *  published by the Free Software Foundation; either version 3 of       *
  *  the License, or (at your option) any later version.                  *
  *                                                                       *
  *  This program 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 General Public License for more details.                         *
  *                                                                       *
  *  You should have received a copy of the GNU General Public License    *
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.*
  *************************************************************************/
 
 #if !defined(KPMCORE_PARTRESIZERWIDGET_H)
 
 #define KPMCORE_PARTRESIZERWIDGET_H
 
+#include "core/partition.h"
 #include "util/libpartitionmanagerexport.h"
 
 #include <QWidget>
 #include <QLabel>
 
-class Partition;
 class PartWidget;
 class Device;
 
 class NewDialog;
 
 class QPaintEvent;
 class QResizeEvent;
 class QMouseEvent;
 
 /** Widget that allows the user to resize a Partition.
     @author Volker Lanz <vl@fidra.de>
 */
 class LIBKPMCORE_EXPORT PartResizerWidget : public QWidget
 {
     friend class NewDialog;
 
     Q_OBJECT
     Q_DISABLE_COPY(PartResizerWidget)
 
 public:
     PartResizerWidget(QWidget* parent);
 
 public:
     void init(Device& d, Partition& p, qint64 minFirst, qint64 maxLast, bool read_only = false, bool move_allowed = true);
 
     qint64 totalSectors() const {
         return maximumLastSector() - minimumFirstSector() + 1;    /**< @return total sectors (free + Partition's length) */
     }
 
     qint64 minimumFirstSector(bool aligned = false) const; /**< @return the lowest allowed first sector */
     void setMinimumFirstSector(qint64 s) {
         m_MinimumFirstSector = s;    /**< @param s the new lowest allowed first sector */
     }
 
     qint64 maximumFirstSector(bool aligned = false) const; /**< @return the highest allowed first sector */
     void setMaximumFirstSector(qint64 s) {
         m_MaximumFirstSector = s;    /**< @param s the new highest allowed first sector */
     }
 
     qint64 minimumLastSector(bool aligned = false) const; /**< @return the lowest allowed last sector */
     void setMinimumLastSector(qint64 s) {
         m_MinimumLastSector = s;    /**< @param s the new lowest allowed last sector */
     }
 
     qint64 maximumLastSector(bool aligned = false) const; /**< @return the highest allowed last sector */
     void setMaximumLastSector(qint64 s) {
         m_MaximumLastSector = s;    /**< @param s the new highest allowed last sector */
     }
 
     void setMinimumLength(qint64 s);
     qint64 minimumLength() const {
         return m_MinimumLength;    /**< @return minimum length for Partition */
     }
 
     void setMaximumLength(qint64 s);
     qint64 maximumLength() const {
         return m_MaximumLength;    /**< @return maximum length for the Partition */
     }
 
     void setMoveAllowed(bool b);
     bool moveAllowed() const {
         return m_MoveAllowed;    /**< @return true if moving the Partition is allowed */
     }
 
     bool readOnly() const {
         return m_ReadOnly;    /**< @return true if the widget is read only */
     }
     void setReadOnly(bool b) {
         m_ReadOnly = b;    /**< @param b the new value for read only */
     }
 
     bool align() const {
+        if (partition().isMounted())
+            return false;
         return m_Align;    /**< @return  true if the Partition is to be aligned */
     }
     void setAlign(bool b) {
         m_Align = b;    /**< @param b the new value for aligning the Partition */
     }
 
     qint32 handleWidth() const; /**< @return the handle width in pixels */
     static qint32 handleHeight() {
         return m_HandleHeight;    /**< @return the handle height in pixels */
     }
 
 Q_SIGNALS:
     void firstSectorChanged(qint64);
     void lastSectorChanged(qint64);
 
 public:
     bool updateFirstSector(qint64 newFirstSector);
     bool updateLastSector(qint64 newLastSector);
     bool movePartition(qint64 newFirstSector);
 
 protected:
     Partition& partition() {
         Q_ASSERT(m_Partition);
         return *m_Partition;
     }
     const Partition& partition() const {
         Q_ASSERT(m_Partition);
         return *m_Partition;
     }
     void setPartition(Partition& p) {
         m_Partition = &p;
     }
 
     Device& device() {
         Q_ASSERT(m_Device);
         return *m_Device;
     }
     const Device& device() const {
         Q_ASSERT(m_Device);
         return *m_Device;
     }
     void setDevice(Device& d) {
         m_Device = &d;
     }
 
     void paintEvent(QPaintEvent* event) override;
     void resizeEvent(QResizeEvent* event) override;
     void mousePressEvent(QMouseEvent* event) override;
     void mouseMoveEvent(QMouseEvent* event) override;
     void mouseReleaseEvent(QMouseEvent* event) override;
 
     PartWidget& partWidget() {
         Q_ASSERT(m_PartWidget);
         return *m_PartWidget;
     }
     const PartWidget& partWidget() const {
         Q_ASSERT(m_PartWidget);
         return *m_PartWidget;
     }
 
     void updatePositions();
 
     int partWidgetStart() const;
     int partWidgetWidth() const;
 
     QLabel& leftHandle() {
         return m_LeftHandle;
     }
     QLabel& rightHandle() {
         return m_RightHandle;
     }
 
     long double sectorsPerPixel() const;
 
     void set(qint64 newCap, qint64 newFreeBefore, qint64 newFreeAfter);
 
     void resizeLogicals(qint64 deltaFirst, qint64 deltaLast, bool force = false);
 
     bool checkAlignment(const Partition& child, qint64 delta) const;
 
     QWidget* draggedWidget() {
         return m_DraggedWidget;
     }
     const QWidget* draggedWidget() const {
         return m_DraggedWidget;
     }
 
     bool checkConstraints(qint64 first, qint64 last) const;
 
 private:
     Device* m_Device;
     Partition* m_Partition;
     PartWidget* m_PartWidget;
 
     qint64 m_MinimumFirstSector;
     qint64 m_MaximumFirstSector;
     qint64 m_MinimumLastSector;
     qint64 m_MaximumLastSector;
     qint64 m_MinimumLength;
     qint64 m_MaximumLength;
 
     QLabel m_LeftHandle;
     QLabel m_RightHandle;
 
     QWidget* m_DraggedWidget;
     int m_Hotspot;
 
     bool m_MoveAllowed;
     bool m_ReadOnly;
     bool m_Align;
 
     static const qint32 m_HandleHeight;
 };
 
 #endif