diff --git a/lib/flat4.f90 b/lib/flat4.f90
index e689825a1..faf154598 100644
--- a/lib/flat4.f90
+++ b/lib/flat4.f90
@@ -17,35 +17,37 @@ subroutine flat4(s,npts0,nflatten)
   do i=1,npts
      s(i)=10.0*log10(s(i))            !Convert to dB scale
   enddo
-  if(nflatten.eq.0) go to 900
 
-  nlen=npts/nseg                      !Length of test segment
-  i0=npts/2                           !Midpoint
-  k=0
-  do n=1,nseg                         !Skip first segment, likely rolloff here
-     ib=n*nlen
-     ia=ib-nlen+1
-     if(n.eq.nseg) ib=npts
-     call pctile(s(ia),ib-ia+1,npct,base) !Find lowest npct of points in segment
-     do i=ia,ib
-        if(s(i).le.base) then
-           if (k.lt.1000) k=k+1       !Save these "lower envelope" points
-           x(k)=i-i0
-           y(k)=s(i)
-        endif
+  if(nflatten.gt.0) then
+     nterms=5
+     if(nflatten.eq.2) nterms=1
+     nlen=npts/nseg                   !Length of test segment
+     i0=npts/2                        !Midpoint
+     k=0
+     do n=1,nseg                      !Skip first segment, likely rolloff here
+        ib=n*nlen
+        ia=ib-nlen+1
+        if(n.eq.nseg) ib=npts
+        call pctile(s(ia),ib-ia+1,npct,base) !Find lowest npct of points
+        do i=ia,ib
+           if(s(i).le.base) then
+              if (k.lt.1000) k=k+1    !Save these "lower envelope" points
+              x(k)=i-i0
+              y(k)=s(i)
+           endif
+        enddo
      enddo
-  enddo
-  kz=k
-  a=0.
-  nterms=5
+     kz=k
+     a=0.
   
-  call polyfit(x,y,y,kz,nterms,0,a,chisqr)  !Fit a low-order polynomial
+     call polyfit(x,y,y,kz,nterms,0,a,chisqr)  !Fit a low-order polynomial
 
-  do i=1,npts
-     t=i-i0
-     yfit=a(1)+t*(a(2)+t*(a(3)+t*(a(4)+t*(a(5)))))
-     s(i)=s(i)-yfit                    !Subtract the fitted baseline
-  enddo
+     do i=1,npts
+        t=i-i0
+        yfit=a(1)+t*(a(2)+t*(a(3)+t*(a(4)+t*(a(5)))))
+        s(i)=s(i)-yfit                !Subtract the fitted baseline
+     enddo
+  endif
 
 900 return
 end subroutine flat4
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 2c6b2b96f..11f703814 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -2167,6 +2167,7 @@ void MainWindow::on_EraseButton_clicked()                          //Erase
 
 void MainWindow::decodeBusy(bool b)                             //decodeBusy()
 {
+/* ###   Temporarily(?) disable the long-decode progress bar.
   bool showProgress = false;
   if (b && m_firstDecode < 65 && ("JT65" == m_mode || "JT9+JT65" == m_mode))
     {
@@ -2180,7 +2181,6 @@ void MainWindow::decodeBusy(bool b)                             //decodeBusy()
       m_firstDecode += 9;
       showProgress = true;
     }
-/* ###   Temporarily(?) disable the long-decode progress bar.
   if (showProgress)
     {
       // this sequence is needed to create an indeterminate progress
diff --git a/plotter.cpp b/plotter.cpp
index 69e3fd7c9..0c77f011c 100644
--- a/plotter.cpp
+++ b/plotter.cpp
@@ -408,7 +408,7 @@ void CPlotter::DrawOverlay()                                 //DrawOverlay()
     painter0.drawLine(x1,8,x1,28);
   }
 
-  if(m_dialFreq>10.13 and m_dialFreq< 10.15) {
+  if(m_dialFreq>10.13 and m_dialFreq< 10.15 and m_mode.mid(0,4)!="WSPR") {
     float f1=1.0e6*(10.1401 - m_dialFreq);
     float f2=f1+200.0;
     x1=XfromFreq(f1);
@@ -625,10 +625,11 @@ void CPlotter::setRxBand(QString band)
   m_rxBand=band;
 }
 
-void CPlotter::setFlatten(bool b)
+void CPlotter::setFlatten(bool b1, bool b2)
 {
   m_Flatten=0;
-  if(b) m_Flatten=1;
+  if(b1) m_Flatten=1;
+  if(b2) m_Flatten=2;
 }
 
 void CPlotter::setTol(int n)                                 //setTol()
diff --git a/plotter.h b/plotter.h
index 4d00bcf14..d9288caf7 100644
--- a/plotter.h
+++ b/plotter.h
@@ -77,7 +77,7 @@ public:
   float fSpan() const {return m_fSpan;}
   void setLockTxFreq(bool b) {m_lockTxFreq = b;}
   void setColours(QVector<QColor> const& cl);
-  void setFlatten(bool b);
+  void setFlatten(bool b1, bool b2);
   void setTol(int n);
   void setRxBand(QString band);
   void setReference(bool b) {m_bReference = b;}
diff --git a/widegraph.cpp b/widegraph.cpp
index 546804239..3cc7a741b 100644
--- a/widegraph.cpp
+++ b/widegraph.cpp
@@ -50,8 +50,8 @@ WideGraph::WideGraph(QSettings * settings, QWidget *parent) :
   int n = m_settings->value("BinsPerPixel",2).toInt();
   m_bFlatten=m_settings->value("Flatten",true).toBool();
   ui->cbFlatten->setChecked(m_bFlatten);
-  ui->widePlot->setFlatten(m_bFlatten);
   m_bRef=m_settings->value("UseRef",false).toBool();
+  ui->widePlot->setFlatten(m_bFlatten,m_bRef);
   ui->cbRef->setChecked(m_bRef);
   ui->widePlot->setBreadth(m_settings->value("PlotWidth",1000).toInt());
   ui->bppSpinBox->setValue(n);
@@ -384,7 +384,7 @@ void WideGraph::on_cbFlatten_toggled(bool b)                          //Flatten
     m_bRef=false;
     ui->cbRef->setChecked(false);
   }
-  ui->widePlot->setFlatten(m_bFlatten);
+  ui->widePlot->setFlatten(m_bFlatten,m_bRef);
 }
 
 void WideGraph::on_cbRef_toggled(bool b)
@@ -394,6 +394,7 @@ void WideGraph::on_cbRef_toggled(bool b)
     m_bFlatten=false;
     ui->cbFlatten->setChecked(false);
   }
+  ui->widePlot->setFlatten(m_bFlatten,m_bRef);
 }
 
 void WideGraph::on_adjust_palette_push_button_clicked (bool)   //Adjust Palette