diff --git a/src/mambatray b/src/mambatray
index 22aae69..d9a478e 100755
--- a/src/mambatray
+++ b/src/mambatray
@@ -163,7 +163,7 @@ class SystemTrayIcon(QtGui.QSystemTrayIcon):
         if (status == QtCore.QProcess.NormalExit):
             self.showMessage("Firewall", _("Firewall enabled in current session"))
         else:
-            self.showMessage("Firewall", _("Could not enable firewall"))	  
+            self.showMessage("Firewall", _("Could not enable firewall"))
 
     def networkFirewallConfigure(self):
       	if desktop_session == 'kde':
@@ -175,7 +175,7 @@ class SystemTrayIcon(QtGui.QSystemTrayIcon):
 	if desktop_session == 'kde':
 		networkProxyProcess.execute("/opt/kde/bin/kcmshell4", QtCore.QStringList(list(set(['proxy']))))
 	elif desktop_session == 'gnome':
-		networkProxyProcess.execute("/usr/bin/gnome-network-properties")
+		networkProxyProcess.execute("/usr/bin/gnome-control-center", "network")
 
     def SRPMSCheckUpgradeList(self):
 	checkSRPMSUpdatesTimer.stop()
@@ -189,7 +189,7 @@ class SystemTrayIcon(QtGui.QSystemTrayIcon):
 		else:
 			lista = []
 			NetsrpmsArg = '-c'
-			checkSRPMSUpdatesTimer.start((nOre * 60) * 60000)		
+			checkSRPMSUpdatesTimer.start((nOre * 60) * 60000)
 		
     #viene eseguita per ogni SRPM al termine del processo SRPMUpdateProcess
     def SRPMSCheckUpgrade(self, status):