diff --git a/src/main.cpp b/src/main.cpp
index e4c3972..2c5ca59 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -10,6 +10,7 @@
 #include <QDebug>
 
 #include <QProcess>
+#include <QSharedMemory>
 
 #include "systeminstaller.h"
 
@@ -26,6 +27,15 @@ int main(int argc, char** argv)
 
 	QApplication	app(argc, argv);
 
+	QSharedMemory	lock("calculate-install-gui");
+
+	if (lock.attach(QSharedMemory::ReadOnly))
+	{
+		QMessageBox::critical(0, "cl-install-gui", "Application is already running");
+		return -2;
+	}
+	lock.create(1);
+
 	qInstallMsgHandler( MsgHandler );
 
 	debugLog.setFileName("/var/log/calculate/cl-install-gui-debug.log");
diff --git a/src/systeminstaller.cpp b/src/systeminstaller.cpp
index f68eeb9..76e610f 100644
--- a/src/systeminstaller.cpp
+++ b/src/systeminstaller.cpp
@@ -26,6 +26,8 @@
 
 #include "pagecfdisk.h"
 
+const QString	VER_STR = "2.2.0.0";
+
 SystemInstaller::SystemInstaller(QWidget *parent) :
 	QMainWindow(parent),
 	m_Translator(new QTranslator),
@@ -347,7 +349,7 @@ void SystemInstaller::showAbout()
 {
 	QMessageBox::about(this, tr("About cl-install-gui"),
 		tr(
-			"<b>calculate-install-gui</b><br>"
+			"<b>calculate-install-gui %1</b><br>"
 			"GUI-frontend for cl-install<br>"
 			"<br><br>"
 			"Developer:<br>"
@@ -356,7 +358,7 @@ void SystemInstaller::showAbout()
 			"Translators:<br>"
 			"&nbsp;&nbsp;&nbsp;&nbsp;Rosen Alexandrov aka ROKO__<br>"
 			"&nbsp;&nbsp;&nbsp;&nbsp;Vadim Bosyuk aka Vados<br>"
-		)
+		).arg(VER_STR)
 	);
 }
 
diff --git a/translations/cl-install-gui_bg.ts b/translations/cl-install-gui_bg.ts
index eaec92f..11bdadd 100644
--- a/translations/cl-install-gui_bg.ts
+++ b/translations/cl-install-gui_bg.ts
@@ -644,7 +644,11 @@ For modifying user - double click it.</source>
     </message>
     <message>
         <source>&lt;b&gt;calculate-install-gui&lt;/b&gt;&lt;br&gt;GUI-frontend for cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Developer:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Ivan Loskutov aka vanner&lt;br&gt;&lt;br&gt;Translators:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Rosen Alexandrov aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Vadim Bosyuk aka Vados&lt;br&gt;</source>
-        <translation type="unfinished">&lt;b&gt;calculate-install-gui&lt;/b&gt;&lt;br&gt;Графичен интерфейс за програмата cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Разработчици:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Иван Лоскутов aka vanner&lt;br&gt;&lt;br&gt;Преводачи:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Росен Александров aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Вадим Босюк aka Vados&lt;br&gt;</translation>
+        <translation type="obsolete">&lt;b&gt;calculate-install-gui&lt;/b&gt;&lt;br&gt;Графичен интерфейс за програмата cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Разработчици:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Иван Лоскутов aka vanner&lt;br&gt;&lt;br&gt;Преводачи:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Росен Александров aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Вадим Босюк aka Vados&lt;br&gt;</translation>
+    </message>
+    <message>
+        <source>&lt;b&gt;calculate-install-gui %1&lt;/b&gt;&lt;br&gt;GUI-frontend for cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Developer:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Ivan Loskutov aka vanner&lt;br&gt;&lt;br&gt;Translators:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Rosen Alexandrov aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Vadim Bosyuk aka Vados&lt;br&gt;</source>
+        <translation type="unfinished">&lt;b&gt;calculate-install-gui %1&lt;/b&gt;&lt;br&gt;Графичен интерфейс за програмата cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Разработчици:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Иван Лоскутов aka vanner&lt;br&gt;&lt;br&gt;Преводачи:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Росен Александров aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Вадим Босюк aka Vados&lt;br&gt;</translation>
     </message>
 </context>
 <context>
diff --git a/translations/cl-install-gui_ru.ts b/translations/cl-install-gui_ru.ts
index 8a51efc..6797af1 100644
--- a/translations/cl-install-gui_ru.ts
+++ b/translations/cl-install-gui_ru.ts
@@ -641,7 +641,11 @@ For modifying user - double click it.</source>
     </message>
     <message>
         <source>&lt;b&gt;calculate-install-gui&lt;/b&gt;&lt;br&gt;GUI-frontend for cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Developer:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Ivan Loskutov aka vanner&lt;br&gt;&lt;br&gt;Translators:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Rosen Alexandrov aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Vadim Bosyuk aka Vados&lt;br&gt;</source>
-        <translation type="unfinished">&lt;b&gt;calculate-install-gui&lt;/b&gt;&lt;br&gt;Графический фронтэнд для программы cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Разработчик:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Иван Лоскутов aka vanner&lt;br&gt;&lt;br&gt;Переводчики:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Росен Александров aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Вадим Босюк aka Vados&lt;br&gt;</translation>
+        <translation type="obsolete">&lt;b&gt;calculate-install-gui&lt;/b&gt;&lt;br&gt;Графический фронтэнд для программы cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Разработчик:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Иван Лоскутов aka vanner&lt;br&gt;&lt;br&gt;Переводчики:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Росен Александров aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Вадим Босюк aka Vados&lt;br&gt;</translation>
+    </message>
+    <message>
+        <source>&lt;b&gt;calculate-install-gui %1&lt;/b&gt;&lt;br&gt;GUI-frontend for cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Developer:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Ivan Loskutov aka vanner&lt;br&gt;&lt;br&gt;Translators:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Rosen Alexandrov aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Vadim Bosyuk aka Vados&lt;br&gt;</source>
+        <translation type="unfinished">&lt;b&gt;calculate-install-gui %1&lt;/b&gt;&lt;br&gt;Графический фронтэнд для программы cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Разработчик:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Иван Лоскутов aka vanner&lt;br&gt;&lt;br&gt;Переводчики:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Росен Александров aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Вадим Босюк aka Vados&lt;br&gt;</translation>
     </message>
 </context>
 <context>
diff --git a/translations/cl-install-gui_uk.ts b/translations/cl-install-gui_uk.ts
index 5ed6b9a..8918303 100644
--- a/translations/cl-install-gui_uk.ts
+++ b/translations/cl-install-gui_uk.ts
@@ -712,7 +712,11 @@ For modifying user - double click it.</source>
     </message>
     <message>
         <source>&lt;b&gt;calculate-install-gui&lt;/b&gt;&lt;br&gt;GUI-frontend for cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Developer:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Ivan Loskutov aka vanner&lt;br&gt;&lt;br&gt;Translators:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Rosen Alexandrov aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Vadim Bosyuk aka Vados&lt;br&gt;</source>
-        <translation type="unfinished">&lt;b&gt;calculate-install-gui&lt;/b&gt;&lt;br&gt;Графычний фронтенд для програми cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt; Розробник:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Иван Лоскутов aka vanner&lt;br&gt;&lt;br&gt;Перекладачі:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Росен Александров aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Вадим Босюк aka Vados&lt;br&gt;</translation>
+        <translation type="obsolete">&lt;b&gt;calculate-install-gui&lt;/b&gt;&lt;br&gt;Графычний фронтенд для програми cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt; Розробник:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Иван Лоскутов aka vanner&lt;br&gt;&lt;br&gt;Перекладачі:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Росен Александров aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Вадим Босюк aka Vados&lt;br&gt;</translation>
+    </message>
+    <message>
+        <source>&lt;b&gt;calculate-install-gui %1&lt;/b&gt;&lt;br&gt;GUI-frontend for cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt;Developer:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Ivan Loskutov aka vanner&lt;br&gt;&lt;br&gt;Translators:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Rosen Alexandrov aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Vadim Bosyuk aka Vados&lt;br&gt;</source>
+        <translation type="unfinished">&lt;b&gt;calculate-install-gui %1&lt;/b&gt;&lt;br&gt;Графычний фронтенд для програми cl-install&lt;br&gt;&lt;br&gt;&lt;br&gt; Розробник:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Иван Лоскутов aka vanner&lt;br&gt;&lt;br&gt;Перекладачі:&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Росен Александров aka ROKO__&lt;br&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Вадим Босюк aka Vados&lt;br&gt;</translation>
     </message>
 </context>
 <context>