diff --git a/GCV-3.6.1-T4.qt52/src/GCV.pro b/GCV-3.6.1-T4.qt52/src/GCV.pro
index 3e3d95c..a4de49c 100644
--- a/GCV-3.6.1-T4.qt52/src/GCV.pro
+++ b/GCV-3.6.1-T4.qt52/src/GCV.pro
@@ -1,164 +1,165 @@
-#-------------------------------------------------
-#
-# Project created by QtCreator 2012-02-13 T17:48:40
-#
-# Rename by LETARTARE  July 28, 2014
-# GCV.pro
-#
-#-------------------------------------------------
-
-TEMPLATE = app
-TARGET = GrblController
-
-DEFINES = QT_NO_DEBUG
-
-QT   += core gui
-
-unix {
-   QT += widgets
-}
-
-# LETARTARE  June 12, 2014
-contains(QT_VERSION, "^5.*") {
-   QT *= widgets printsupport
-}
-
-# LETARTARE  July 28, 2014
-# DESTDIR = bin
-
-CONFIG(debug, debug|release) {
-    #  TARGET =
-    DESTDIR = bin/debug
-    OBJECTS_DIR = build/debug/obj
-    MOC_DIR = build/debug/moc
-    RCC_DIR = build/debug/rcc
-    UI_DIR = build/debug/ui
-}
-else {
-  #  TARGET =
-    DESTDIR = bin
-    OBJECTS_DIR = build/release/obj
-    MOC_DIR = build/release/moc
-    RCC_DIR = build/release/rcc
-    UI_DIR = build/release/ui
-}
-
-# QGlViewer
-QT += xml opengl
-INCLUDEPATH += QGLViewer QGLWidget
-# srichy  November 17, 2014
-unix {
-    !macx {
-        LIBS += -lGLU
-        LIBS += -lQGLViewer
-    }
-    else
-    {
-        LIBS *= -framework QGLViewer
-    }
-}
-else {
-    LIBS += -lQGlViewer2
-}
-
-
-HEADER +=  visu3D/Point3D.h visu3D/Line3D.h visu3D/Arc3D.h visu3D/Tools3D.h  visu3D/Box3D.h
-SOURCES += visu3D/Point3D.cpp visu3D/Line3D.cpp visu3D/Arc3D.cpp visu3D/Tools3D.cpp visu3D/Box3D.cpp
-
-
-# Translations
-	TRANSLATIONS += trlocale/GrblController_xx.ts
-	TRANSLATIONS += trlocale/GrblController_fr.ts
-
-include(QextSerialPort/qextserialport.pri)
-include(log4qt/log4qt.pri)
-
-SOURCES += main.cpp\
-    mainwindow.cpp \
-    rs232.cpp \
-    options.cpp \
-    grbldialog.cpp \
-    about.cpp \
-    gcode.cpp \
-    timer.cpp \
-    atomicintbool.cpp \
-    coord3d.cpp \
-    renderarea.cpp \
-    positem.cpp \
-    renderitemlist.cpp \
-    lineitem.cpp \
-    itemtobase.cpp \
-    arcitem.cpp \
-    pointitem.cpp \
-    controlparams.cpp \
-    visu3D/viewer3D.cpp
-
-HEADERS  += mainwindow.h \
-    rs232.h \
-    options.h \
-    grbldialog.h \
-    definitions.h \
-    about.h \
-    images.rcc \
-    gcode.h \
-    timer.h \
-    atomicintbool.h \
-    coord3d.h \
-    log4qtdef.h \
-    renderarea.h \
-    positem.h \
-    renderitemlist.h \
-    lineitem.h \
-    itemtobase.h \
-    arcitem.h \
-    pointitem.h \
-    termiosext.h \
-    controlparams.h \
-    version.h \
-    visu3D/viewer3D.h
-
-FORMS    += forms/mainwindow.ui \
-    forms/options.ui \
-    forms/grbldialog.ui \
-    forms/about.ui
-
-RESOURCES += GrblController.qrc
-
-RC_FILE = grbl.rc
-
-OTHER_FILES += \
-    android/AndroidManifest.xml \
-    android/res/drawable/icon.png \
-    android/res/drawable/logo.png \
-    android/res/drawable-hdpi/icon.png \
-    android/res/drawable-ldpi/icon.png \
-    android/res/drawable-mdpi/icon.png \
-    android/res/layout/splash.xml \
-    android/res/values/libs.xml \
-    android/res/values/strings.xml \
-    android/res/values-de/strings.xml \
-    android/res/values-el/strings.xml \
-    android/res/values-es/strings.xml \
-    android/res/values-et/strings.xml \
-    android/res/values-fa/strings.xml \
-    android/res/values-fr/strings.xml \
-    android/res/values-id/strings.xml \
-    android/res/values-it/strings.xml \
-    android/res/values-ja/strings.xml \
-    android/res/values-ms/strings.xml \
-    android/res/values-nb/strings.xml \
-    android/res/values-nl/strings.xml \
-    android/res/values-pl/strings.xml \
-    android/res/values-pt-rBR/strings.xml \
-    android/res/values-ro/strings.xml \
-    android/res/values-rs/strings.xml \
-    android/res/values-ru/strings.xml \
-    android/res/values-zh-rCN/strings.xml \
-    android/res/values-zh-rTW/strings.xml \
-    android/src/org/kde/necessitas/ministro/IMinistro.aidl \
-    android/src/org/kde/necessitas/ministro/IMinistroCallback.aidl \
-    android/src/org/kde/necessitas/origo/QtActivity.java \
-    android/src/org/kde/necessitas/origo/QtApplication.java \
-    android/version.xml
-
-
+#-------------------------------------------------
+#
+# Project created by QtCreator 2012-02-13 T17:48:40
+#
+# Rename by LETARTARE  July 28, 2014
+# GCV.pro
+#
+#-------------------------------------------------
+
+TEMPLATE = app
+TARGET = GrblController
+
+DEFINES = QT_NO_DEBUG
+
+QT   += core gui
+
+unix {
+   QT += widgets
+}
+
+# LETARTARE  June 12, 2014
+contains(QT_VERSION, "^5.*") {
+   QT *= widgets printsupport
+}
+
+# LETARTARE  July 28, 2014
+# DESTDIR = bin
+
+CONFIG(debug, debug|release) {
+    #  TARGET =
+    DESTDIR = bin/debug
+    OBJECTS_DIR = build/debug/obj
+    MOC_DIR = build/debug/moc
+    RCC_DIR = build/debug/rcc
+    UI_DIR = build/debug/ui
+}
+else {
+  #  TARGET =
+    DESTDIR = bin
+    OBJECTS_DIR = build/release/obj
+    MOC_DIR = build/release/moc
+    RCC_DIR = build/release/rcc
+    UI_DIR = build/release/ui
+}
+
+# QGlViewer
+QT += xml opengl
+#INCLUDEPATH += QGLViewer QGLWidget
+# srichy  November 17, 2014
+unix {
+    !macx {
+        LIBS += -lGLU
+        LIBS += -lQGLViewer
+    }
+
+    linux-g++ {
+      LIBS += -lqglviewer2
+      message(Linux)
+    }
+}
+else {
+    LIBS += -lQGlViewer2
+}
+
+
+HEADER +=  visu3D/Point3D.h visu3D/Line3D.h visu3D/Arc3D.h visu3D/Tools3D.h  visu3D/Box3D.h
+SOURCES += visu3D/Point3D.cpp visu3D/Line3D.cpp visu3D/Arc3D.cpp visu3D/Tools3D.cpp visu3D/Box3D.cpp
+
+
+# Translations
+	TRANSLATIONS += trlocale/GrblController_xx.ts
+	TRANSLATIONS += trlocale/GrblController_fr.ts
+
+include(QextSerialPort/qextserialport.pri)
+include(log4qt/log4qt.pri)
+
+SOURCES += main.cpp\
+    mainwindow.cpp \
+    rs232.cpp \
+    options.cpp \
+    grbldialog.cpp \
+    about.cpp \
+    gcode.cpp \
+    timer.cpp \
+    atomicintbool.cpp \
+    coord3d.cpp \
+    renderarea.cpp \
+    positem.cpp \
+    renderitemlist.cpp \
+    lineitem.cpp \
+    itemtobase.cpp \
+    arcitem.cpp \
+    pointitem.cpp \
+    controlparams.cpp \
+    visu3D/viewer3D.cpp
+
+HEADERS  += mainwindow.h \
+    rs232.h \
+    options.h \
+    grbldialog.h \
+    definitions.h \
+    about.h \
+    images.rcc \
+    gcode.h \
+    timer.h \
+    atomicintbool.h \
+    coord3d.h \
+    log4qtdef.h \
+    renderarea.h \
+    positem.h \
+    renderitemlist.h \
+    lineitem.h \
+    itemtobase.h \
+    arcitem.h \
+    pointitem.h \
+    termiosext.h \
+    controlparams.h \
+    version.h \
+    visu3D/viewer3D.h
+
+FORMS    += forms/mainwindow.ui \
+    forms/options.ui \
+    forms/grbldialog.ui \
+    forms/about.ui
+
+RESOURCES += GrblController.qrc
+
+RC_FILE = grbl.rc
+
+OTHER_FILES += \
+    android/AndroidManifest.xml \
+    android/res/drawable/icon.png \
+    android/res/drawable/logo.png \
+    android/res/drawable-hdpi/icon.png \
+    android/res/drawable-ldpi/icon.png \
+    android/res/drawable-mdpi/icon.png \
+    android/res/layout/splash.xml \
+    android/res/values/libs.xml \
+    android/res/values/strings.xml \
+    android/res/values-de/strings.xml \
+    android/res/values-el/strings.xml \
+    android/res/values-es/strings.xml \
+    android/res/values-et/strings.xml \
+    android/res/values-fa/strings.xml \
+    android/res/values-fr/strings.xml \
+    android/res/values-id/strings.xml \
+    android/res/values-it/strings.xml \
+    android/res/values-ja/strings.xml \
+    android/res/values-ms/strings.xml \
+    android/res/values-nb/strings.xml \
+    android/res/values-nl/strings.xml \
+    android/res/values-pl/strings.xml \
+    android/res/values-pt-rBR/strings.xml \
+    android/res/values-ro/strings.xml \
+    android/res/values-rs/strings.xml \
+    android/res/values-ru/strings.xml \
+    android/res/values-zh-rCN/strings.xml \
+    android/res/values-zh-rTW/strings.xml \
+    android/src/org/kde/necessitas/ministro/IMinistro.aidl \
+    android/src/org/kde/necessitas/ministro/IMinistroCallback.aidl \
+    android/src/org/kde/necessitas/origo/QtActivity.java \
+    android/src/org/kde/necessitas/origo/QtApplication.java \
+    android/version.xml
+
+
diff --git a/GCV-3.6.1-T4.qt52/src/forms/mainwindow.ui b/GCV-3.6.1-T4.qt52/src/forms/mainwindow.ui
index 0b2b690..c2fd2c5 100644
--- a/GCV-3.6.1-T4.qt52/src/forms/mainwindow.ui
+++ b/GCV-3.6.1-T4.qt52/src/forms/mainwindow.ui
@@ -1246,7 +1246,7 @@
                 <property name="smallDecimalPoint">
                  <bool>false</bool>
                 </property>
-                <property name="numDigits">
+                <property name="digitCount">
                  <number>3</number>
                 </property>
                 <property name="segmentStyle">
diff --git a/GCV-3.6.1-T4.qt52/src/log4qt/helpers/factory.h b/GCV-3.6.1-T4.qt52/src/log4qt/helpers/factory.h
index dfe4bfa..b75b4b3 100644
--- a/GCV-3.6.1-T4.qt52/src/log4qt/helpers/factory.h
+++ b/GCV-3.6.1-T4.qt52/src/log4qt/helpers/factory.h
@@ -29,7 +29,7 @@
 /******************************************************************************
  * Dependencies
  ******************************************************************************/
-
+#include <QObject>
 #include <QtCore/QHash>
 #include <QtCore/QMutex>
 #include <QtCore/QStringList>
diff --git a/GCV-3.6.1-T4.qt52/src/visu3D/box3D.cpp b/GCV-3.6.1-T4.qt52/src/visu3D/Box3D.cpp
similarity index 94%
rename from GCV-3.6.1-T4.qt52/src/visu3D/box3D.cpp
rename to GCV-3.6.1-T4.qt52/src/visu3D/Box3D.cpp
index 3edc867..25e6e78 100644
--- a/GCV-3.6.1-T4.qt52/src/visu3D/box3D.cpp
+++ b/GCV-3.6.1-T4.qt52/src/visu3D/Box3D.cpp
@@ -7,7 +7,7 @@
  * License:   GPL
  **************************************************************/
 
-#include "box3D.h"
+#include "Box3D.h"
 #include <QtOpenGL>
 
 Box3D::Box3D(const QVector3D p1, const QVector3D p2, bool mm1, QColor c)
diff --git a/GCV-3.6.1-T4.qt52/src/visu3D/box3D.h b/GCV-3.6.1-T4.qt52/src/visu3D/Box3D.h
similarity index 100%
rename from GCV-3.6.1-T4.qt52/src/visu3D/box3D.h
rename to GCV-3.6.1-T4.qt52/src/visu3D/Box3D.h
diff --git a/GCV-3.6.1-T4.qt52/src/visu3D/viewer3D.cpp b/GCV-3.6.1-T4.qt52/src/visu3D/viewer3D.cpp
index bd3fa27..79879d3 100644
--- a/GCV-3.6.1-T4.qt52/src/visu3D/viewer3D.cpp
+++ b/GCV-3.6.1-T4.qt52/src/visu3D/viewer3D.cpp
@@ -9,10 +9,10 @@
 
 #include "viewer3D.h"
 #include <math.h>
-#include "point3D.h"
-#include "line3D.h"
-#include "arc3d.h"
-#include "box3D.h"
+#include "Point3D.h"
+#include "Line3D.h"
+#include "Arc3D.h"
+#include "Box3D.h"
 #include "version.h"
 
 // Constructor must call the base class constructor.