diff --git a/Graphs/gLineChart.cpp b/Graphs/gLineChart.cpp
index dd68d362..11678ac1 100644
--- a/Graphs/gLineChart.cpp
+++ b/Graphs/gLineChart.cpp
@@ -149,6 +149,13 @@ void gLineChart::Plot(gGraphWindow & w,float scrx,float scry)
             EventList & el=*evec[n];
 
             accel=(el.type()==EVL_Waveform); // Turn on acceleration if this is a waveform.
+            if (accel) {
+                sr=el.rate();           // Time distance between samples
+                if (sr<=0) {
+                    qWarning() << "qLineChart::Plot() assert(sr>0)";
+                    continue;
+                }
+            }
             if (m_disable_accel) accel=false;
 
 
@@ -183,11 +190,6 @@ void gLineChart::Plot(gGraphWindow & w,float scrx,float scry)
             }
             if (accel) {
                 //x1=el.time(1);
-                sr=el.rate();           // Time distance between samples
-                if (sr<=0) {
-                    qWarning() << "qLineChart::Plot() assert(sr>0)";
-                    continue;
-                }
 
                 double XR=xx/sr;
                 double Z1=MAX(x0,minx);
diff --git a/daily.cpp b/daily.cpp
index ba306275..5951efae 100644
--- a/daily.cpp
+++ b/daily.cpp
@@ -43,22 +43,22 @@ void MyScrollArea::scrollContentsBy(int dx, int dy)
 {
     QScrollArea::scrollContentsBy(dx,dy);
 
-//#ifdef Q_WS_MAC || Q_WS_WIN
+#ifdef Q_WS_MAC
     if (timer->isActive()) timer->stop();
     timer->setSingleShot(true);
-    timer->setInterval(200);
+    timer->setInterval(250);
     connect(timer,SIGNAL(timeout()),SLOT(UpdateGraphs()));
     timer->start();
     m_time.start();
     //m_daily->RedrawGraphs();
-//#endif
+#endif
 }
 void MyScrollArea::UpdateGraphs()
 {
-    if (m_time.elapsed()<200)
+    if (m_time.elapsed()<250)
         return;
     m_time.start();
-    //qDebug() << "Foo!";
+    qDebug() << "Redraw!";
     m_daily->RedrawGraphs();
 }
 
diff --git a/mainwindow.cpp b/mainwindow.cpp
index c8ca1c5f..97a5be5c 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -29,7 +29,9 @@ QStatusBar *qstatusbar;
 
 void MainWindow::Log(QString s)
 {
-    ui->logText->appendPlainText(s);
+    static int start=QDateTime::currentDateTime().toTime_t();
+    QString tmp=QString("%1: %2").arg(QDateTime::currentDateTime().toTime_t()-start,5,10,QChar('0')).arg(s);
+    ui->logText->appendPlainText(tmp);
 }
 
 
diff --git a/oximetry.cpp b/oximetry.cpp
index cb139df2..d751c3f5 100644
--- a/oximetry.cpp
+++ b/oximetry.cpp
@@ -48,7 +48,7 @@ Oximetry::Oximetry(QWidget *parent,QGLWidget * shared) :
     //ui->graphLayout->addWidget(splitter);
 
     // Create the Event Lists to store / import data
-    ev_plethy=new EventList(OXI_Plethysomogram,EVL_Event,1,0,0,0,1000.0/50.0);
+    ev_plethy=new EventList(OXI_Plethysomogram,EVL_Waveform,1,0,0,0,1000.0/50.0);
     session->eventlist[OXI_Plethysomogram].push_back(ev_plethy);
 
     ev_pulse=new EventList(OXI_Pulse,EVL_Event,1);
@@ -157,8 +157,8 @@ void Oximetry::on_RunButton_toggled(bool checked)
 {
     if (checked) {
         lasttime=0;
-        lastpulse=-1;
-        lastspo2=-1;
+        lastpulse=0;
+        lastspo2=0;
 
         // Wipe any current data
         ev_plethy->getData().clear();
@@ -220,18 +220,27 @@ void Oximetry::on_RunButton_toggled(bool checked)
         delete port;
         port=NULL;
 
+        ev_pulse->AddEvent(lasttime,lastpulse);
+        ev_spo2->AddEvent(lasttime,lastspo2);
         ev_spo2->setLast(lasttime);
         ev_pulse->setLast(lasttime);
         ev_plethy->setLast(lasttime);
         day->setLast(lasttime);
         session->set_last(lasttime);
 
+
         SPO2->SetMinX(ev_spo2->first());
         SPO2->SetMaxX(lasttime);
         PULSE->SetMinX(ev_pulse->first());
         PULSE->SetMaxX(lasttime);
         PLETHY->SetMinX(ev_plethy->first());
         PLETHY->SetMaxX(lasttime);
+        SPO2->MinX();
+        SPO2->MaxX();
+        PULSE->MinX();
+        PULSE->MaxX();
+        PLETHY->MinX();
+        PLETHY->MaxX();
 
         PLETHY->updateGL();
         SPO2->updateGL();
@@ -245,22 +254,13 @@ void Oximetry::on_SerialPortsCombo_activated(const QString &arg1)
 }
 void Oximetry::UpdatePlethy(qint8 d)
 {
-    ev_plethy->AddEvent(lasttime,d);
+    ev_plethy->getData().push_back(d);
+    if (d<ev_plethy->min()) ev_plethy->setMin(d);
+    if (d>ev_plethy->max()) ev_plethy->setMax(d);
+    ev_plethy->setCount(ev_plethy->count()+1);
+    //ev_plethy->AddEvent(lasttime,d);
     lasttime+=20;  // 50 samples per second
-    //ev_plethy->setLast(lasttime);
-    //if (plethy->RealMaxX()-plethy->RealMinX()>(1.0/(24.0*120.0))) {
-    //    plethy->SetMinX(lasttime/86400000.0-(1.0/(24.0*120.0)));
-    //    plethy->SetMaxX(lasttime/86400000.0);
-    //}
 
-    //plethy->setMinY(ev_plethy->min());
-    //plethy->setMaxY(ev_plethy->max());
-    //plethy->setMinY(ev_plethy->min());
-    //plethy->setMaxY(ev_plethy->max());
-    PLETHY->MinX();
-    PLETHY->MaxX();
-    //PLETHY->MinY();
-    //PLETHY->MaxY();
     PLETHY->SetMinY(ev_plethy->min());
     PLETHY->SetMaxY(ev_plethy->max());
     PULSE->SetMinY(ev_pulse->min());
@@ -276,6 +276,8 @@ void Oximetry::UpdatePlethy(qint8 d)
     SPO2->SetMinX(lasttime-30000);
     session->set_last(lasttime);
     day->setLast(lasttime);
+    PLETHY->MinX();
+    PLETHY->MaxX();
 }
 bool Oximetry::UpdatePulse(qint8 pul)
 {