diff --git a/SrcPony/businter.h b/SrcPony/businter.h
index b3404aa..f9c253e 100644
--- a/SrcPony/businter.h
+++ b/SrcPony/businter.h
@@ -102,14 +102,12 @@ class BusInterface
 		qDebug() << "BusInterface::TestRestore() OUT";
 	}
 
-	virtual int SetPower(int onoff)
+	virtual int SetPower(bool onoff)
 	{
-		(void)onoff;
 		return OK;
 	}
 	virtual void SetControlLine(int res = 1)
 	{
-		(void)res;
 	}
 
 	virtual void SetDataOut(int sda = 1) = 0;
diff --git a/SrcPony/dt006interf.cpp b/SrcPony/dt006interf.cpp
index 8ab2fec..a3b8757 100644
--- a/SrcPony/dt006interf.cpp
+++ b/SrcPony/dt006interf.cpp
@@ -93,9 +93,8 @@ void Dt006Interface::SetControlLine(int res)
 }
 
 
-int Dt006Interface::SetPower(int onoff)
+int Dt006Interface::SetPower(bool onoff)
 {
-	(void)onoff;
 	//OutDataPort(0);         //No action
 	SetControlLine(0);
 
diff --git a/SrcPony/dt006interf.h b/SrcPony/dt006interf.h
index b10e3de..c138393 100644
--- a/SrcPony/dt006interf.h
+++ b/SrcPony/dt006interf.h
@@ -49,7 +49,7 @@ class Dt006Interface : public LptExtInterface
 
 	virtual int TestPort(int port);
 
-	int SetPower(int onoff);
+	int SetPower(bool onoff);
 	void SetControlLine(int res = 1);
 
   protected:             //------------------------------- protected
diff --git a/SrcPony/e2app.cpp b/SrcPony/e2app.cpp
index 47781d9..9c96a78 100644
--- a/SrcPony/e2app.cpp
+++ b/SrcPony/e2app.cpp
@@ -255,7 +255,7 @@ int e2App::OpenBus(BusIO *p)
 
 	if (rv == OK)
 	{
-		rv = busIntp->SetPower(1);
+		rv = busIntp->SetPower(true);
 
 		qDebug() << "e2App::OpenBus() ** SetPower";
 
@@ -278,7 +278,7 @@ void e2App::SleepBus()
 	qDebug() << "e2App::CloseBus() iniBus=" << (hex) << iniBus << (dec);
 
 	iniBus->WaitMsec(5);    // 08/04/98 -- hold time dell'alimentazione
-	busIntp->SetPower(0);
+	busIntp->SetPower(false);
 	iniBus->Close();                // 28/09/98 -- richiude la porta dopo averla usata
 }
 
diff --git a/SrcPony/e2cmdw.cpp b/SrcPony/e2cmdw.cpp
index e023b12..444d7a7 100644
--- a/SrcPony/e2cmdw.cpp
+++ b/SrcPony/e2cmdw.cpp
@@ -1804,6 +1804,15 @@ void e2CmdWindow::createFontSizeMenu()
 	connect(fsizeGroup, SIGNAL(triggered(QAction *)), this, SLOT(selectFontSize(QAction *)));
 }
 
+void e2CmdWindow::onDtaChanged()
+{
+	if (awip)
+	{
+		awip->BufChanged(e2HexEdit->isModified());
+		UpdateStatusBar();
+	}
+}
+
 /**
  * @brief create all SIGNAL -> SLOT connections
  * EK 2017
@@ -1822,7 +1831,7 @@ void e2CmdWindow::createSignalSlotConnections()
 	// not implemented are: cut/copy/paste buttons
 
 	// font size
-	connect(fsizeGroup, SIGNAL(triggered()), this, SLOT(selectFontSize()));
+	//connect(fsizeGroup, SIGNAL(triggered()), this, SLOT(selectFontSize()));
 
 	// new
 	connect(actionNew, SIGNAL(triggered()), this, SLOT(onNew()));
@@ -1983,7 +1992,7 @@ void e2CmdWindow::createSignalSlotConnections()
 	connect(actiontEEPType, SIGNAL(triggered()), this, SLOT(onSelectEEPType(int val)));
 	connect(actiontEEPSubtype, SIGNAL(triggered()), this, SLOT(onEEPSubType(int val)));
 #endif
-	connect(actionCalibration, SIGNAL(triggered()), this, SLOT(onReadCalibration(int idx)));
+	//connect(actionCalibration, SIGNAL(triggered()), this, SLOT(onReadCalibration(int idx)));
 	// interface setup
 	connect(actionInterfaceSetup, SIGNAL(triggered()), this, SLOT(onInterfSetup()));
 	//      connect(actiontWriteCalibration, SIGNAL(triggered()), this, SLOT( onWriteCalibration(int idx)));
@@ -2007,6 +2016,26 @@ void e2CmdWindow::onInterfSetup()
 	}
 }
 
+#if 0
+void e2CmdWindow::dragEnterEvent(QDragEnterEvent *event)
+{
+	if (event->mimeData()->hasUrls())
+		event->accept();
+}
+
+
+void e2CmdWindow::dropEvent(QDropEvent *event)
+{
+	if (event->mimeData()->hasUrls())
+	{
+		QList<QUrl> urls = event->mimeData()->urls();
+		QString filePath = urls.at(0).toLocalFile();
+		loadFile(filePath);
+		event->accept();
+	}
+}
+#endif
+
 
 void e2CmdWindow::onGetInfo()
 {
@@ -5999,27 +6028,23 @@ int e2CmdWindow::OpenScript(const QString &file)
 }
 
 
-HIDDEN QStringList filter = QStringList({ "*.e2p",   "*.hex",   "*.mot",    "*.bin", "*.csm", "*.rom", "*.eep", "*" });
-HIDDEN QStringList filterInfo = QStringList({ "E2P (*.e2p)",   "Intel (*.hex)",   "S-rec (*.mot)",    "Raw (*.bin)", "CSM (*.csm)", "(*.rom)", "(*.eep)", "*" });
+HIDDEN QStringList filter = QStringList({ "*.e2p", "*.hex", "*.mot", "*.bin", "*.csm", "*.rom", "*.eep", "*" });
+//                                         ^^^^^    ^^^^^    ^^^^^    ^^^^^    ^^^^^
+//                                       form E2P  form Intel  form S-rec, form Binary (Raw), CSM,    gli altri non aggiungono ulteriori formati
+HIDDEN QStringList filterInfo = QStringList({ "E2P (*.e2p)", "Intel (*.hex)", "S-rec (*.mot)", "Raw (*.bin)", "CSM (*.csm)", "(*.rom)", "(*.eep)", "*" });
 
-//                         ^^^^^      ^^^^^      ^^^^^       ^^^^^                ^^^^^^^
-//                                       form E2P  form Intel  form S-rec, form Binary (Raw),    CSM,    gli altri non aggiungono ulteriori formati
 HIDDEN int filterIndex = 0;
 
 
 
 HIDDEN void AddExtension(QString &name)
 {
-	int p = name.indexOf('.');  //look for extension
+	int p = name.lastIndexOf('.');  //look for extension
 
-	if (p < 0 || (name.mid(p) != filter.at(filterIndex)))
+	if (p < 0 || (name.mid(p) != filter.at(filterIndex).mid(1)))
 	{
-		//not found
-		name += filter.at(filterIndex);
-		//              if ( name.length() + strlen(filter[filterIndex] + 1) < maxlen )
-		//              {
-		//                      strcat(name, filter[filterIndex] + 1);        //append extension
-		//              }
+		//if not found append extension
+		name += filter.at(filterIndex).mid(1);
 	}
 }
 
@@ -6140,6 +6165,16 @@ int e2CmdWindow::OpenFile(const QString &file)
 	return rval;
 }
 
+int e2CmdWindow::filterNameToIndex(const QString &s, const QStringList &lst)
+{
+	for (int i = 0; i < lst.count(); i++)
+	{
+		if (lst.at(i) == s)
+			return i;
+	}
+
+	return -1;
+}
 
 QString e2CmdWindow::convertFilterListToString(const QStringList &lst)
 {
@@ -6180,6 +6215,7 @@ int e2CmdWindow::SaveFile(int force_select)
 			note.setIcon(QMessageBox::Critical);
 			note.setWindowTitle("Save");
 			note.setText(str);
+			//note.setParent(this);
 			note.exec();
 		}
 	}
@@ -6207,10 +6243,10 @@ int e2CmdWindow::SaveFile(int force_select)
 
 		filterIndex = (int)awip->GetFileBuf(); // ???
 
-
 		QString fltr = convertFilterListToString(filterInfo);
+		QString sFilter = filterInfo.at(filterIndex);
 		//fn = awip->GetFileName();	//should be the filename proposed by the dialog by default
-		QString fn = QFileDialog::getSaveFileName(this, translate(STR_MSGFILESAVEAS), QDir::homePath(), fltr);
+		QString fn = QFileDialog::getSaveFileName(this, s, QDir::homePath(), fltr, &sFilter);
 
 		if (fn.length())
 		{
@@ -6218,8 +6254,12 @@ int e2CmdWindow::SaveFile(int force_select)
 
 			//Save the old name in case some error occurs, so it can restore it
 			QString oldname = awip->GetFileName();
-
-			awip->SetFileBuf((enum FileType)filterIndex);   //????? Ci vorrebbe un controllo separato dall'estensione sul tipo di file (combobox)
+			int fidx = filterNameToIndex(sFilter, filterInfo);
+			if (fidx > -1)
+			{
+				filterIndex = fidx;
+				awip->SetFileBuf((enum FileType)filterIndex);   //????? Ci vorrebbe un controllo separato dall'estensione sul tipo di file (combobox)
+			}
 			E2Profile::SetDefaultFileType(awip->GetFileBuf());
 			awip->SetFileName(fn);
 
diff --git a/SrcPony/e2cmdw.h b/SrcPony/e2cmdw.h
index d3562a3..8cdd5f3 100644
--- a/SrcPony/e2cmdw.h
+++ b/SrcPony/e2cmdw.h
@@ -240,6 +240,7 @@ class e2CmdWindow : public QMainWindow, public e2App, public Ui::MainWindow
 
 	void onSelectScript(QAction *a);
 	void onSelectFile(QAction *a);
+	void onDtaChanged();
 
   public:
 	int CmdHelp();
@@ -308,6 +309,7 @@ class e2CmdWindow : public QMainWindow, public e2App, public Ui::MainWindow
   private:              //--------------------------------------- private
 	void createSignalSlotConnections();
 	QString convertFilterListToString(const QStringList &lst);
+	int filterNameToIndex(const QString &s, const QStringList &lst);
 
 	void doProgress(const QString &text);
 
diff --git a/SrcPony/ispinterf.cpp b/SrcPony/ispinterf.cpp
index 997265a..1ca9c2d 100644
--- a/SrcPony/ispinterf.cpp
+++ b/SrcPony/ispinterf.cpp
@@ -142,7 +142,7 @@ void AvrISPInterface::SetControlLine(int res)
 }
 
 
-int AvrISPInterface::SetPower(int onoff)
+int AvrISPInterface::SetPower(bool onoff)
 {
 #ifdef  AVRISP_MAPPED
 
diff --git a/SrcPony/ispinterf.h b/SrcPony/ispinterf.h
index 532e582..fb94997 100644
--- a/SrcPony/ispinterf.h
+++ b/SrcPony/ispinterf.h
@@ -49,7 +49,7 @@ class AvrISPInterface : public LptExtInterface
 
 	virtual int TestPort(int port);
 
-	int SetPower(int onoff);
+	int SetPower(bool onoff);
 	void SetControlLine(int res = 1);
 
   protected:             //------------------------------- protected
diff --git a/SrcPony/linuxsysfsint.cpp b/SrcPony/linuxsysfsint.cpp
index 70a8504..2c8937c 100644
--- a/SrcPony/linuxsysfsint.cpp
+++ b/SrcPony/linuxsysfsint.cpp
@@ -193,7 +193,7 @@ static int gpio_close(unsigned int gpio, int fd)
 }
 #endif
 
-int LinuxSysFsInterface::SetPower(int onoff)
+int LinuxSysFsInterface::SetPower(bool onoff)
 {
 	qDebug() << "LinuxSysFsInterface::SetPower(" << onoff << ")";
 	return OK;
@@ -261,7 +261,7 @@ void LinuxSysFsInterface::Close()
 
 	if (IsInstalled())
 	{
-		SetPower(0);
+		SetPower(false);
 		DeInitPins();
 		DeInstall();
 	}
diff --git a/SrcPony/linuxsysfsint.h b/SrcPony/linuxsysfsint.h
index 7ce5912..f204c6f 100644
--- a/SrcPony/linuxsysfsint.h
+++ b/SrcPony/linuxsysfsint.h
@@ -51,7 +51,7 @@ class LinuxSysFsInterface : public BusInterface
 
 	//      virtual int TestPort(int port);
 
-	int SetPower(int onoff);
+	int SetPower(bool onoff);
 	void SetControlLine(int res = 1);
 
   protected:             //------------------------------- protected
diff --git a/SrcPony/pgminter.cpp b/SrcPony/pgminter.cpp
index e63c911..14be99a 100644
--- a/SrcPony/pgminter.cpp
+++ b/SrcPony/pgminter.cpp
@@ -64,7 +64,7 @@ void SIProgInterface::SetControlLine(int res)
 
 //La alimentazione e` data dalle tre linee: SCL, SDA, RESET.
 // Se una qualsiasi di queste tre linee e` a 1 vi e` alimentazione
-int SIProgInterface::SetPower(int onoff)
+int SIProgInterface::SetPower(bool onoff)
 {
 	if (onoff)
 	{
@@ -91,7 +91,7 @@ int SIProgInterface::Open(int com_no)
 		if ((ret_val = RS232Interface::OpenSerial(com_no)) == OK)
 		{
 			//      SetSerialEventMask(0);
-			//SetPower(1);  //08/02/1998 -- ora diamo alimentazione prima di ogni operazione e la togliamo subito dopo
+			//SetPower(true);  //08/02/1998 -- ora diamo alimentazione prima di ogni operazione e la togliamo subito dopo
 
 			Install(com_no);
 		}
@@ -108,7 +108,7 @@ void SIProgInterface::Close()
 
 	if (IsInstalled())
 	{
-		SetPower(0);
+		SetPower(false);
 		//SetCommMask(hCom, old_mask);
 		DeInstall();
 		RS232Interface::CloseSerial();
diff --git a/SrcPony/pgminter.h b/SrcPony/pgminter.h
index 1f33a23..58cce25 100644
--- a/SrcPony/pgminter.h
+++ b/SrcPony/pgminter.h
@@ -53,7 +53,7 @@ class SIProgInterface : public BusInterface, public RS232Interface
 	//      int TestSave(int port);
 	//      void TestRestore();
 
-	int SetPower(int onoff);
+	int SetPower(bool onoff);
 	void SetControlLine(int res = 1);
 
   protected:             //------------------------------- protected
diff --git a/SrcPony/ponyioint.cpp b/SrcPony/ponyioint.cpp
index 8a2dc02..a0130e7 100644
--- a/SrcPony/ponyioint.cpp
+++ b/SrcPony/ponyioint.cpp
@@ -129,7 +129,7 @@ void PonyIOInterface::SetControlLine(int res)
 
 //Note that with PonyProg SI interface 3 lines provide the power:
 //  SCL, SDA, RESET. If any of these lines are on (>5V) the power is ON
-int PonyIOInterface::SetPower(int onoff)
+int PonyIOInterface::SetPower(bool onoff)
 {
 	qDebug() << "PonyIOInterface::SetPower(" << onoff << ")";
 
@@ -172,7 +172,7 @@ void PonyIOInterface::Close()
 
 	if (IsInstalled())
 	{
-		SetPower(0);
+		SetPower(false);
 		CloseSerial();
 		DeInstall();
 	}
diff --git a/SrcPony/ponyioint.h b/SrcPony/ponyioint.h
index 00344ca..7a9c929 100644
--- a/SrcPony/ponyioint.h
+++ b/SrcPony/ponyioint.h
@@ -51,7 +51,7 @@ class PonyIOInterface : public BusInterface, public PortInterface
 
 	virtual int TestPort(int port);
 
-	int SetPower(int onoff);
+	int SetPower(bool onoff);
 	void SetControlLine(int res = 1);
 
   protected:             //------------------------------- protected