diff --git a/VERSION b/VERSION
index 96c019b..6d1ae1c 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-VERSION=3.0.1
+VERSION=3.0.2
diff --git a/src/mambatray b/src/mambatray
index 1427723..d85396b 100755
--- a/src/mambatray
+++ b/src/mambatray
@@ -9,11 +9,13 @@ import os
 import gettext
 import libproxy
 from PyQt5.QtCore import pyqtSignal
-from PyQt5 import QtGui
-from PyQt5 import QtWidgets
+from PyQt5.QtGui import QIcon
+from PyQt5.QtWidgets import QSystemTrayIcon, QApplication, QMenu, QMainWindow, QMessageBox, QWidget
 from PyQt5 import QtCore
 
-class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
+class SystemTrayIcon(QSystemTrayIcon):
+
+    context_menu = None
 
     def __init__(self, icon, parent=None):
         global w, menu, contatore, srpm, lista, NetsrpmsArg, nOre, desktop_session
@@ -23,8 +25,8 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
         lista = []
         contatore = 0
         w = parent
-        QtWidgets.QSystemTrayIcon.__init__(self, icon, parent)
-        menu = QtWidgets.QMenu(parent)
+        QSystemTrayIcon.__init__(self, icon, parent)
+        menu = QMenu(parent)
 
         try:
             desktop_session = os.path.basename(os.getenv('DESKTOP_SESSION'))
@@ -54,14 +56,14 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
         softwareBaseInstallsProcess = QtCore.QProcess(self)
         dcopServerProcess = QtCore.QProcess(self)
 
-        softwareMenu = menu.addMenu(QtGui.QIcon.fromTheme("applications-system"),_("Software"))
-        softwareManageAction = softwareMenu.addAction(QtGui.QIcon.fromTheme("applications-other"),_("Add/Remove software packages..."))
+        softwareMenu = menu.addMenu(QIcon.fromTheme("applications-system"),_("Software"))
+        softwareManageAction = softwareMenu.addAction(QIcon.fromTheme("applications-other"),_("Add/Remove software packages..."))
         softwareManageAction.triggered.connect(self.softwareManager)
 
-        softwareCheckUpgradesAction = softwareMenu.addAction(QtGui.QIcon.fromTheme("system-software-update"),_("Check for updates now..."))
+        softwareCheckUpgradesAction = softwareMenu.addAction(QIcon.fromTheme("system-software-update"),_("Check for updates now..."))
         softwareCheckUpgradesAction.triggered.connect(self.softwareCheckUpgrades)
 
-        softwareBaseInstallsAction = softwareMenu.addAction(QtGui.QIcon.fromTheme("openmamba"),_("openmamba components..."))
+        softwareBaseInstallsAction = softwareMenu.addAction(QIcon.fromTheme("openmamba"),_("openmamba components..."))
         softwareBaseInstallsAction.triggered.connect(self.softwareBaseInstalls)
 
         # network menu
@@ -71,27 +73,27 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
         networkFirewallConfigureProcess = QtCore.QProcess(self)
         networkProxyProcess = QtCore.QProcess(self)
 
-        networkMenu = menu.addMenu(QtGui.QIcon.fromTheme("preferences-system-network"),_("Network"))
-        networkFirewallMenu = networkMenu.addMenu(QtGui.QIcon.fromTheme("security-medium"),_("Firewall"))
-        networkFirewallDisableAction = networkFirewallMenu.addAction(QtGui.QIcon.fromTheme("security-low"),_("Disable"))
+        networkMenu = menu.addMenu(QIcon.fromTheme("preferences-system-network"),_("Network"))
+        networkFirewallMenu = networkMenu.addMenu(QIcon.fromTheme("security-medium"),_("Firewall"))
+        networkFirewallDisableAction = networkFirewallMenu.addAction(QIcon.fromTheme("security-low"),_("Disable"))
         networkFirewallDisableAction.triggered.connect(self.networkFirewallDisable)
         networkFirewallDisableProcess.finished.connect(self.networkFirewallDisableMessage)
-        networkFirewallEnableAction = networkFirewallMenu.addAction(QtGui.QIcon.fromTheme("security-high"),_("Enable"))
+        networkFirewallEnableAction = networkFirewallMenu.addAction(QIcon.fromTheme("security-high"),_("Enable"))
         networkFirewallEnableAction.triggered.connect(self.networkFirewallEnable)
         networkFirewallEnableProcess.finished.connect(self.networkFirewallEnableMessage)
-        networkFirewallConfigureAction = networkFirewallMenu.addAction(QtGui.QIcon.fromTheme("security-medium"),_("Configure..."))
+        networkFirewallConfigureAction = networkFirewallMenu.addAction(QIcon.fromTheme("security-medium"),_("Configure..."))
         networkFirewallConfigureAction.triggered.connect(self.networkFirewallConfigure)
-        networkProxyAction = networkMenu.addAction(QtGui.QIcon.fromTheme("network-server"),_("Proxy..."))
+        networkProxyAction = networkMenu.addAction(QIcon.fromTheme("network-server"),_("Proxy..."))
         networkProxyAction.triggered.connect(self.networkProxy)
         SRPMUpdateProcess.finished.connect(self.SRPMSCheckUpgrade)
 
 
         # about box
         aboutAction = menu.addSeparator()
-        aboutAction = menu.addAction(QtGui.QIcon.fromTheme("help-about"),_("About"))
+        aboutAction = menu.addAction(QIcon.fromTheme("help-about"),_("About"))
         aboutAction.triggered.connect(self.about)
 
-        self.setContextMenu(menu)
+        self.context_menu = menu
         self.setToolTip(_("openmamba control center"))
         self.activated.connect(self.iconActivated)
 
@@ -115,7 +117,7 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
                     break
 
     def iconActivated(self, reason):
-        if reason in (QtWidgets.QSystemTrayIcon.Trigger, QtWidgets.QSystemTrayIcon.DoubleClick):
+        if reason in (QSystemTrayIcon.Trigger, QSystemTrayIcon.DoubleClick):
             menu.popup(self.geometry().center())
 
     def about(self):
@@ -125,15 +127,15 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
             v = open(path, 'r')
             version = v.read()
             a = self.FormattaInfo()
-            version = "<ul><li>"+_("<font color=\"green\">open</font>mamba release:")+" <i>"+a[0]+"</i><li>"+_("Platform: ")+"<i>"+a[1]+"</i></ul>" 
+            version = "<ul><li>"+_("<font color=\"green\">open</font>mamba release:")+" <i>"+a[0]+"</i><li>"+_("Platform: ")+"<i>"+a[1]+"</i></ul>"
             v.close()
         else:
             version = _("Error: Unable to find /etc/openmamba-release")
-        QtWidgets.QMessageBox.about(menu, _("About"),
+        QMessageBox.about(menu, _("About"),
                       "<center><b>"+_("openmamba control center")+"</b>"
                       "<br><br>Copyright(c) 2011-2019 by Silvan Calarco"
-                      "<br>Copyright(c) 2011 by michiamophil"                      
-                      "<br><br><b>"+_("System info:")+"</b></center>"		      
+                      "<br>Copyright(c) 2011 by michiamophil"
+                      "<br><br><b>"+_("System info:")+"</b></center>"
                       ""+_(version)+"<center><a href=\"http://openmamba.org\">http://openmamba.org</a></center>")
 
     def FormattaInfo(self):
@@ -149,7 +151,7 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
         return networkOnlineProcess.execute("/usr/bin/nm-online",['-q','-x'])
 
     def softwareManager(self):
-        self.setProxyForSmart()
+        #self.setProxyForSmart()
         if desktop_session == 'plasma':
             softwareManagerProcess.execute("/usr/bin/plasma-discover", ['--mode', 'Browsing'])
         elif desktop_session == 'kde':
@@ -158,7 +160,7 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
             softwareManagerProcess.execute("/usr/bin/gpk-application")
 
     def softwareCheckUpgrades(self):
-        self.setProxyForSmart()
+        #self.setProxyForSmart()
         if desktop_session == 'plasma':
             softwareCheckUpgradesProcess.start("/usr/bin/plasma-discover", ['--mode', 'Update'])
         elif desktop_session == 'kde':
@@ -167,7 +169,7 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
             softwareCheckUpgradesProcess.start("/usr/bin/gpk-update-viewer")
 
     def refreshPackagesCache(self):
-        self.setProxyForSmart()
+        #self.setProxyForSmart()
         refreshPackagesTimer.stop()
         refreshPackagesCacheProcess.start("/usr/bin/pkcon", ['refresh'])
 
@@ -186,7 +188,7 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
         if (status == QtCore.QProcess.NormalExit):
             self.showMessage("Firewall", _("Firewall disabled in current session"))
         else:
-            self.showMessage("Firewall", _("Could not disable firewall"))	  
+            self.showMessage("Firewall", _("Could not disable firewall"))
 
     def networkFirewallEnable(self):
         networkFirewallEnableProcess.start("sudo",['/usr/sbin/ufw','enable'])
@@ -210,7 +212,7 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
             networkProxyProcess.execute("/opt/kde/bin/kcmshell4", list(set(['proxy'])))
         elif desktop_session == 'gnome':
             networkProxyProcess.execute("/usr/bin/gnome-control-center", "network")
-        self.setProxyForSmart()
+        #self.setProxyForSmart()
 
     def SRPMSCheckUpgradeList(self):
         checkSRPMSUpdatesTimer.stop()
@@ -240,8 +242,8 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
         global NetsrpmsArg, lista
         if not lista == []:
             Lista = self.Lista()
-            msg = QtWidgets.QMessageBox.question(menu, (_("Not Open Source openmamba components")), (_("The following components are available for update: ") + "\n\n" + Lista + "\n\n" + _("Ok to proceed?")), QtWidgets.QMessageBox.Yes | QtWidgets.QMessageBox.No, QtWidgets.QMessageBox.Yes)
-            if msg == QtWidgets.QMessageBox.Yes:
+            msg = QMessageBox.question(menu, (_("Not Open Source openmamba components")), (_("The following components are available for update: ") + "\n\n" + Lista + "\n\n" + _("Ok to proceed?")), QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
+            if msg == QMessageBox.Yes:
                 NetsrpmsArg = '-u'
                 self.SRPMSCheckUpgradeList()
             else:
@@ -257,18 +259,22 @@ class SystemTrayIcon(QtWidgets.QSystemTrayIcon):
             testo = testo + a + ', ' 
         return testo[0:len(testo)-2]
 
+
 def main():
-    app = QtWidgets.QApplication(sys.argv)
+    app = QApplication(sys.argv)
     if (app.isSessionRestored()):
         app.exit(1)
     else:
         app.setQuitOnLastWindowClosed(0)
         gettext.install('mambatray', '/usr/share/locale')
-        w = QtWidgets.QWidget()
-        w.setWindowIcon(QtGui.QIcon.fromTheme("mambatray",QtGui.QIcon("/usr/share/icons/hicolor/64x64/apps/mambatray.png")))
-        trayIcon = SystemTrayIcon(QtGui.QIcon.fromTheme("mambatray", QtGui.QIcon("/usr/share/icons/hicolor/32x32/apps/mambatray.png")), w)
+        w = QWidget()
+        w.setWindowIcon(QIcon.fromTheme("mambatray",QIcon("/usr/share/icons/hicolor/64x64/apps/mambatray.png")))
+        trayIcon = SystemTrayIcon(QIcon.fromTheme("mambatray", QIcon("/usr/share/icons/hicolor/32x32/apps/mambatray.png")), w)
         trayIcon.show()
+        trayIcon.setContextMenu(menu)
+        trayIcon.setVisible(True)
         sys.exit(app.exec_())
 
+
 if __name__ == '__main__':
     main()