diff --git a/binaries/oscilloscope_linux b/binaries/oscilloscope_linux
index 29327e2..ef6b4b9 100755
Binary files a/binaries/oscilloscope_linux and b/binaries/oscilloscope_linux differ
diff --git a/src/qt/mainwindow.cpp b/src/qt/mainwindow.cpp
index 8df939b..a2f4818 100644
--- a/src/qt/mainwindow.cpp
+++ b/src/qt/mainwindow.cpp
@@ -21,16 +21,14 @@ MainWindow::MainWindow(QWidget* parent)
     : QMainWindow(parent)
     , ui(new Ui::MainWindow),
       m_serial(new QSerialPort(this)),
-      m_pixmap(new QPixmap(500, 400)),
+      m_pixmap(new QPixmap(520, 250)),
       m_paint(new QPainter(m_pixmap)),
       m_ui_settings(new SettingsDialog()),
       m_statusLabel(new QLabel())
 {
     ui->setupUi(this);
 
-    ui->lbPic->setMinimumSize(1, 1);
-    //ui->lbPic->adjustSize();
-    drawBackground();
+    ui->lbPic->setMinimumSize(50, 50);
     ui->lbPic->setPixmap(*m_pixmap);
     statusBar()->addWidget(m_statusLabel);
     m_statusLabel->setText("Disconnected");
@@ -52,7 +50,7 @@ MainWindow::MainWindow(QWidget* parent)
     ui->cbHdiv->addItem("100us/d");
     ui->cbHdiv->setItemData(0, 10000);
     ui->cbHdiv->setItemData(1, 5000);
-    ui->cbHdiv->setItemData(2, 100);
+    ui->cbHdiv->setItemData(2, 1000);
     ui->cbHdiv->setItemData(3, 500);
     ui->cbHdiv->setItemData(4, 100);
     ui->cbHdiv->setCurrentIndex(2);
@@ -64,21 +62,20 @@ MainWindow::MainWindow(QWidget* parent)
 
     QMenu *menu = menuBar()->addMenu(tr("&Menu"));
 
-    const QIcon connectIcon = QIcon::fromTheme("connect", QIcon("connect.png"));
+    const QIcon connectIcon = QIcon(":/connect.png");
     connectAct = new QAction(connectIcon, tr("&Connect"), this);
     menu->addAction(connectAct);
 
-
-    const QIcon disconnectIcon = QIcon::fromTheme("disconnect", QIcon("disconnect.png"));
+    const QIcon disconnectIcon = QIcon(":/disconnect.png");
     disconnectAct = new QAction(disconnectIcon, tr("&Disconnect"), this);
     menu->addAction(disconnectAct);
     menu->addSeparator();
 
-    const QIcon exportIcon = QIcon::fromTheme("export", QIcon("save.png"));
+    const QIcon exportIcon = QIcon(":/save.png");
     QAction *exportAct = new QAction(exportIcon, tr("&Export..."), this);
     menu->addAction(exportAct);
 
-    const QIcon settingsIcon = QIcon::fromTheme("settings", QIcon("settings.png"));
+    const QIcon settingsIcon = QIcon(":/settings.png");
     QAction *settingsAct = new QAction(settingsIcon, tr("&Settings..."), this);
     menu->addAction(settingsAct);
     menu->addSeparator();
@@ -86,7 +83,7 @@ MainWindow::MainWindow(QWidget* parent)
     QAction *aboutAct = new QAction(tr("&About"), this);
     menu->addAction(aboutAct);
 
-    const QIcon exitIcon = QIcon::fromTheme("exit", QIcon("application-exit.png"));
+    const QIcon exitIcon = QIcon(":/application-exit.png");
     QAction *exitAct = new QAction(exitIcon, tr("&Exit"), this);
     menu->addAction(exitAct);
 
@@ -100,8 +97,10 @@ MainWindow::MainWindow(QWidget* parent)
     toolBar->addSeparator();
     toolBar->addAction(exitAct);
 #endif
+
     disconnectAct->setEnabled(false);
 
+
     connect(m_serial, &QSerialPort::readyRead, this, &MainWindow::readData);
     connect(connectAct, &QAction::triggered, this, &MainWindow::openSerialPort);
     connect(disconnectAct, &QAction::triggered, this, &MainWindow::closeSerialPort);
@@ -109,13 +108,15 @@ MainWindow::MainWindow(QWidget* parent)
     connect(exportAct, &QAction::triggered, this, &MainWindow::exportData);
     connect(aboutAct, &QAction::triggered, this, &MainWindow::about);
     connect(exitAct, &QAction::triggered, this, &MainWindow::exitApp);
-    connect(ui->cbHdiv, &QComboBox::currentIndexChanged, this, &MainWindow::updateHdiv);
-    connect(ui->cbVdiv, &QComboBox::currentIndexChanged, this, &MainWindow::updateVdiv);
-    connect(ui->cbTriggerType, &QComboBox::currentIndexChanged, this, &MainWindow::updateTriggerType);
-    connect(ui->sbTriggerValue, &QDoubleSpinBox::valueChanged, this, &MainWindow::updateTrigger);
+
+    connect(ui->cbHdiv, &QComboBox::currentTextChanged, this, &MainWindow::updateHdiv);
+    connect(ui->cbVdiv, &QComboBox::currentTextChanged, this, &MainWindow::updateVdiv);
+    connect(ui->cbTriggerType, &QComboBox::currentTextChanged, this, &MainWindow::updateTriggerType);
+    connect(ui->sbTriggerValue, &QDoubleSpinBox::textChanged, this, &MainWindow::updateTrigger);
     connect(m_ui_settings, &SettingsDialog::accepted, this, &MainWindow::refresh);
 
-    qInfo() << QString::number(ui->lbPic->height()) + " " + QString::number(ui->lbPic->width());
+    ui->lbPic->adjustSize();
+    drawBackground();
 }
 
 MainWindow::~MainWindow()
@@ -242,7 +243,6 @@ void MainWindow::drawBackground()
     float voltPos = (float)ui->slVolt->value() / (ui->slVolt->maximum() - ui->slVolt->minimum());
     uint16_t yPos = m_pixmap->height() * (5 / volt + (6 - 5 / vDiv) / 6 / 2);
     m_paint->drawLine(0, yPos + m_pixmap->height() * voltPos, m_pixmap->width(), yPos + m_pixmap->height() * voltPos);
-    //m_paint->setPen(QColor(0, 0, 0, 123));
     m_paint->setPen(QColor(m_ui_settings->m_currentSettings.gridcolor));
 
     for (uint8_t i = 0; i < 6; i++) {   // horizontal lines
@@ -257,7 +257,6 @@ void MainWindow::drawBackground()
     font.setPixelSize(14);
     //font.setBold(true);
     m_paint->setFont(font);
-    //m_paint->setPen(QColor(0, 0, 100, 255));
     m_paint->setPen(QColor(m_ui_settings->m_currentSettings.textcolor));
     m_paint->drawText(5, height - 5, QString::number(vDiv * 1000) + "mV/d    " + QString::number((float)timeLenght / 10 * 1000) + "μs/d    Vmax=" + QString::number((float)maxValue / 0xFF * 5, 'f',
                       3) + "    Vmin=" + QString::number((float)minValue / 0xFF * 5, 'f', 3));
diff --git a/src/qt/mainwindow.h b/src/qt/mainwindow.h
index 590a7ca..b02fe0b 100644
--- a/src/qt/mainwindow.h
+++ b/src/qt/mainwindow.h
@@ -18,7 +18,6 @@
 
 #include <QMainWindow>
 #include <QSerialPort>
-#include <QSerialPortInfo>
 #include <QDebug>
 #include <QPainter>
 #include <QFileDialog>
@@ -61,12 +60,12 @@ private:
     float trigger = 1;
     enum Edge { min, max };
     enum TriggerType { none, rising, falling };
-    TriggerType triggerType = none;
+    TriggerType triggerType = rising;
 
     uint8_t maxValue = 0;
     uint8_t minValue = 0;
-    uint16_t rawFreq;
-    uint16_t rawDuty;
+    uint16_t rawFreq = 0;
+    uint16_t rawDuty = 0;
     bool pendingExport = false;
     QString fileName;
 
diff --git a/src/qt/mainwindow.ui b/src/qt/mainwindow.ui
index bd16579..c3188d8 100644
--- a/src/qt/mainwindow.ui
+++ b/src/qt/mainwindow.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>1009</width>
-    <height>766</height>
+    <width>565</width>
+    <height>428</height>
    </rect>
   </property>
   <property name="font">
@@ -100,6 +100,12 @@ selection-background-color: rgb(192, 191, 188);</string>
         <property name="enabled">
          <bool>true</bool>
         </property>
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
         <property name="minimumSize">
          <size>
           <width>0</width>
@@ -164,7 +170,7 @@ selection-background-color: rgb(192, 191, 188);</string>
     <rect>
      <x>0</x>
      <y>0</y>
-     <width>1009</width>
+     <width>565</width>
      <height>24</height>
     </rect>
    </property>
diff --git a/src/qt/oscilloscope.pro b/src/qt/oscilloscope.pro
index 2214080..a4485a7 100644
--- a/src/qt/oscilloscope.pro
+++ b/src/qt/oscilloscope.pro
@@ -21,6 +21,12 @@ FORMS += \
     mainwindow.ui \
     settingsdialog.ui
 
+CONFIG(win) {
+    TARGET = oscilloscope_win
+} else {
+    TARGET = oscilloscope_linux
+}
+
 # Default rules for deployment.
 qnx: target.path = /tmp/$${TARGET}/bin
 else: unix:!android: target.path = /opt/$${TARGET}/bin
@@ -29,6 +35,3 @@ else: unix:!android: target.path = /opt/$${TARGET}/bin
 RESOURCES += \
     resources.qrc
 
-DISTFILES += \
-    ../../README.md \
-    connect.png
diff --git a/src/qt/resources.qrc b/src/qt/resources.qrc
index a3d6e39..d5ef20f 100644
--- a/src/qt/resources.qrc
+++ b/src/qt/resources.qrc
@@ -3,5 +3,7 @@
         <file>oscilloscope.bmp</file>
         <file>connect.png</file>
         <file>disconnect.png</file>
+        <file>save.png</file>
+        <file>settings.png</file>
     </qresource>
 </RCC>
diff --git a/src/qt/settingsdialog.h b/src/qt/settingsdialog.h
index 1765886..9937165 100644
--- a/src/qt/settingsdialog.h
+++ b/src/qt/settingsdialog.h
@@ -20,7 +20,6 @@
 #include <QSerialPort>
 #include <QSettings>
 #include <QDebug>
-#include <QIntValidator>
 #include <QLineEdit>
 #include <QSerialPortInfo>
 #include <QColorDialog>