diff --git a/Graphs/gLineChart.cpp b/Graphs/gLineChart.cpp
index 13b52ce6..f70e0cee 100644
--- a/Graphs/gLineChart.cpp
+++ b/Graphs/gLineChart.cpp
@@ -147,7 +147,7 @@ void gLineChart::Plot(gGraphWindow & w,float scrx,float scry)
 
 
             square_plot=m_square_plot;
-            if (accel || num_points>1000) { // Don't square plot if too many points or waveform
+            if (accel || num_points>5000) { // Don't square plot if too many points or waveform
                 square_plot=false;
             }
 
diff --git a/Graphs/gSplitter.cpp b/Graphs/gSplitter.cpp
new file mode 100644
index 00000000..cac671dc
--- /dev/null
+++ b/Graphs/gSplitter.cpp
@@ -0,0 +1,70 @@
+#include "gSplitter.h"
+#include "graphwindow.h"
+#include <QDebug>
+gSplitter::gSplitter(QWidget *parent) :
+    QSplitter(parent)
+{
+    z_timer=new QTimer(this);
+
+    //timer=NULL;
+ //   icnt=0;
+}
+gSplitter::gSplitter(Qt::Orientation orientation, QWidget *parent) :
+    QSplitter(orientation,parent)
+{
+   // icnt=0;
+    this->connect(this,SIGNAL(splitterMoved(int,int)),SLOT(mySplitterMoved(int,int)));
+    z_timer=new QTimer(this);
+}
+gSplitter::~gSplitter()
+{
+    delete z_timer;
+    this->disconnect(SLOT(mySplitterMoved(int,int)));
+   // timer->stop();
+}
+
+void gSplitter::mySplitterMoved (int pos, int index)
+{
+    if (z_timer->isActive()) z_timer->stop();
+    z_pos=pos;
+    z_index=index;
+    this->setUpdatesEnabled(true);
+    if (gGraphWindow *w=qobject_cast<gGraphWindow *>(widget(index-1))) {
+        int s=sizes().at(index-1);
+        w->updateGL();
+        //w->resizeGL(w->width(),pos);
+        //w->updateGL();
+        //w->paintGL();
+    }
+    if (gGraphWindow *w=qobject_cast<gGraphWindow *>(widget(index))) {
+        int s=sizes().at(index);
+        //w->resizeGL(w->width(),s);
+        //w->updateGL();
+        //w->paintGL();
+    }
+    qDebug() << ++icnt;
+    z_timer->singleShot(50,this,SLOT(doUpdateGraph()));
+    tm.start();
+    this->setUpdatesEnabled(false);
+}
+
+void gSplitter::doUpdateGraph()
+{
+
+    if (tm.elapsed()<50)
+        return;
+
+    if (gGraphWindow *w=qobject_cast<gGraphWindow *>(widget(z_index))) {
+        qDebug() << icnt << "Height" << w->height() << z_index << z_pos << w->Title();
+
+        int s=sizes().at(z_index);
+
+        this->setUpdatesEnabled(true);
+        w->resizeGL(w->width(),s);
+        w->paintGL();
+    }
+    //timer->stop();
+    icnt=0;
+ //   QSplitter::resizeEvent(&event);
+
+}
diff --git a/Graphs/gSplitter.h b/Graphs/gSplitter.h
new file mode 100644
index 00000000..d6ebcea6
--- /dev/null
+++ b/Graphs/gSplitter.h
@@ -0,0 +1,30 @@
+#ifndef GSPLITTER_H
+#define GSPLITTER_H
+
+#include <QSplitter>
+#include <QResizeEvent>
+#include <QTime>
+#include <QTimer>
+
+class gSplitter : public QSplitter
+{
+    Q_OBJECT
+public:
+    explicit gSplitter(QWidget *parent = 0);
+    explicit gSplitter(Qt::Orientation orientation, QWidget *parent = 0);
+    virtual ~gSplitter();
+signals:
+
+public slots:
+    void mySplitterMoved(int pos, int index);
+    void doUpdateGraph();
+
+protected:
+    QTimer * z_timer;
+    int z_pos,z_index;
+    int icnt;
+    QTime tm;
+
+};
+
+#endif // GSPLITTER_H
diff --git a/Graphs/graphwindow.cpp b/Graphs/graphwindow.cpp
index a4052a78..280d7b5c 100644
--- a/Graphs/graphwindow.cpp
+++ b/Graphs/graphwindow.cpp
@@ -91,17 +91,10 @@ bool gGraphWindow::isEmpty()
     }
     return empty;
 }
-void gGraphWindow::resizeEvent(QResizeEvent *e)
+/*void gGraphWindow::resizeEvent(QResizeEvent *e)
 {
-    this->setUpdatesEnabled(false);
-    this->blockSignals(true);
     QGLWidget::resizeEvent(e);
-    this->blockSignals(false);
-    this->setUpdatesEnabled(true);
-    //this->resizeGL(e->size().width(),e->size().height());
-    //this->paintGL();
-    //e->accept();
-}
+}*/
 
 
 void gGraphWindow::AddLayer(gLayer *l) {
diff --git a/Graphs/graphwindow.h b/Graphs/graphwindow.h
index 4660540e..b69d3eb6 100644
--- a/Graphs/graphwindow.h
+++ b/Graphs/graphwindow.h
@@ -132,9 +132,10 @@ public:
       bool isEmpty();
       void SetSplitter(QSplitter *s) { splitter=s; }
       bool isDraggingGraph() { return m_dragGraph; }
+      void setScry(int h) { m_scrY=h; }
   protected:
       void updateSelectionTime(qint64 span);
-      void resizeEvent(QResizeEvent *);
+      //virtual void resizeEvent(QResizeEvent *);
       void initializeGL();
       QSplitter *splitter;
       QList<gGraphWindow *>link_zoom;
diff --git a/SleepyHeadQT.pro b/SleepyHeadQT.pro
index eff1ec04..f3eba43e 100644
--- a/SleepyHeadQT.pro
+++ b/SleepyHeadQT.pro
@@ -55,7 +55,8 @@ SOURCES += main.cpp\
     Graphs/gBarChart.cpp \
     Graphs/gSegmentChart.cpp \
     Graphs/gSessionTime.cpp \
-    qextserialport/qextserialport.cpp
+    qextserialport/qextserialport.cpp \
+    Graphs/gSplitter.cpp
 
 unix:SOURCES           += qextserialport/posix_qextserialport.cpp
 unix:!macx:SOURCES     += qextserialport/qextserialenumerator_unix.cpp
@@ -104,7 +105,8 @@ HEADERS  += \
     SleepLib/loader_plugins/sleep_database.h \
     qextserialport/qextserialport_global.h \
     qextserialport/qextserialport.h \
-    qextserialport/qextserialenumerator.h
+    qextserialport/qextserialenumerator.h \
+    Graphs/gSplitter.h
 
 
 FORMS    += \
diff --git a/daily.cpp b/daily.cpp
index e3fc1d4d..be8939db 100644
--- a/daily.cpp
+++ b/daily.cpp
@@ -53,38 +53,38 @@ Daily::Daily(QWidget *parent,QGLWidget * shared, MainWindow *mw)
 
     //scrollArea=new MyScrollArea(this);
 
-    gSplitter=new QSplitter(Qt::Vertical,ui->scrollArea);
-    gSplitter->setStyleSheet("QSplitter::handle { background-color: 'light grey'; }");
-    gSplitter->setHandleWidth(3);
+    splitter=new gSplitter(Qt::Vertical,ui->scrollArea);
+    splitter->setStyleSheet("QSplitter::handle { background-color: 'light grey'; }");
+    splitter->setHandleWidth(3);
 #ifdef Q_WS_MAC
-    gSplitter->setOpaqueResize(false);
+    splitter->setOpaqueResize(false);
 #endif
 
     ui->scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
     ui->scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-    ui->scrollArea->setWidget(gSplitter);
+    ui->scrollArea->setWidget(splitter);
     //this->connect(ui->scrollArea,
-    //ui->graphSizer->addWidget(gSplitter);
+    //ui->graphSizer->addWidget(splitter);
     ui->scrollArea->setAutoFillBackground(false);
-    gSplitter->setAutoFillBackground(false);
+    splitter->setAutoFillBackground(false);
     ui->scrollArea->setWidgetResizable(true);
-    //gSplitter->setMinimumHeight(1600);
-    //gSplitter->setMinimumWidth(600);
+    //splitter->setMinimumHeight(1600);
+    //splitter->setMinimumWidth(600);
 
-    SF=new gGraphWindow(gSplitter,tr("Event Flags"),shared);
-    FRW=new gGraphWindow(gSplitter,tr("Flow Rate"),SF);
-    PRD=new gGraphWindow(gSplitter,tr("Pressure"),SF);
-    LEAK=new gGraphWindow(gSplitter,tr("Leaks"),SF);
-    MP=new gGraphWindow(gSplitter,tr("Mask Pressure"),SF);
-    SNORE=new gGraphWindow(gSplitter,tr("Snore"),SF);
-    FLG=new gGraphWindow(gSplitter,tr("Flow Limitation"),SF);
-    MV=new gGraphWindow(gSplitter,tr("Minute Ventilation"),SF);
-    TV=new gGraphWindow(gSplitter,tr("Tidal Volume"),SF);
-    RR=new gGraphWindow(gSplitter,tr("Respiratory Rate"),SF);
-    PTB=new gGraphWindow(gSplitter,tr("Patient Trig Breaths"),SF);
-    //OF=new gGraphWindow(gSplitter,tr("Oxi-Flags"),SF);
-    PULSE=new gGraphWindow(gSplitter,tr("Pulse"),SF);
-    SPO2=new gGraphWindow(gSplitter,tr("SPO2"),SF);
+    SF=new gGraphWindow(splitter,tr("Event Flags"),shared);
+    FRW=new gGraphWindow(splitter,tr("Flow Rate"),SF);
+    PRD=new gGraphWindow(splitter,tr("Pressure"),SF);
+    LEAK=new gGraphWindow(splitter,tr("Leaks"),SF);
+    MP=new gGraphWindow(splitter,tr("Mask Pressure"),SF);
+    SNORE=new gGraphWindow(splitter,tr("Snore"),SF);
+    FLG=new gGraphWindow(splitter,tr("Flow Limitation"),SF);
+    MV=new gGraphWindow(splitter,tr("Minute Ventilation"),SF);
+    TV=new gGraphWindow(splitter,tr("Tidal Volume"),SF);
+    RR=new gGraphWindow(splitter,tr("Respiratory Rate"),SF);
+    PTB=new gGraphWindow(splitter,tr("Patient Trig Breaths"),SF);
+    //OF=new gGraphWindow(splitter,tr("Oxi-Flags"),SF);
+    PULSE=new gGraphWindow(splitter,tr("Pulse"),SF);
+    SPO2=new gGraphWindow(splitter,tr("SPO2"),SF);
 
     TAP=new gGraphWindow(NULL,"",(QGLWidget* )NULL);
     TAP_EAP=new gGraphWindow(NULL,"",(QGLWidget* )NULL);
@@ -261,24 +261,24 @@ Daily::Daily(QWidget *parent,QGLWidget * shared, MainWindow *mw)
     G_AHI->SetGradientBackground(false);
     G_AHI->hide();
 
-    NoData=new QLabel(tr("No data"),gSplitter);
+    NoData=new QLabel(tr("No data"),splitter);
     NoData->setAlignment(Qt::AlignCenter);
     QFont font("FreeSans",20); //NoData->font();
     //font.setBold(true);
     NoData->setFont(font);
     NoData->hide();
 
-    gSplitter->addWidget(NoData);
-    int i=gSplitter->indexOf(NoData);
-    gSplitter->setStretchFactor(i,1);
+    splitter->addWidget(NoData);
+    int i=splitter->indexOf(NoData);
+    splitter->setStretchFactor(i,1);
 
     gGraphWindow * graphs[]={SF,FRW,MP,MV,TV,PTB,RR,PRD,LEAK,FLG,SNORE};
     int ss=sizeof(graphs)/sizeof(gGraphWindow *);
 
     for (int i=0;i<ss;i++) {
         AddGraph(graphs[i]);
-        //int j=gSplitter->indexOf(graphs[i]);
-        //gSplitter->setStretchFactor(j,1);
+        //int j=splitter->indexOf(graphs[i]);
+        //splitter->setStretchFactor(j,1);
         for (int j=0;j<ss;j++) {
             if (graphs[i]!=graphs[j])
                 graphs[i]->LinkZoom(graphs[j]);
@@ -297,24 +297,24 @@ Daily::Daily(QWidget *parent,QGLWidget * shared, MainWindow *mw)
     //OF->LinkZoom(SPO2);
 
     //  AddGraph(SPO2);
-   // spacer=new QWidget(gSplitter);
+   // spacer=new QWidget(splitter);
     //spacer->setMaximumHeight(default_height);
-    //gSplitter->addWidget(spacer);
-    //i=gSplitter->indexOf(spacer);
-    //gSplitter->setStretchFactor(i,1);
-    //i=gSplitter->indexOf(FRW);
-    //gSplitter->setStretchFactor(i,15);
+    //splitter->addWidget(spacer);
+    //i=splitter->indexOf(spacer);
+    //splitter->setStretchFactor(i,1);
+    //i=splitter->indexOf(FRW);
+    //splitter->setStretchFactor(i,15);
 
 
-    //gSplitter->refresh();
+    //splitter->refresh();
 
-    gSplitter->setChildrenCollapsible(false);  // We set this per widget..
-    //gSplitter->setCollapsible(gSplitter->indexOf(SF),false);
-    //gSplitter->setStretchFactor(gSplitter->indexOf(SF),0);
+    splitter->setChildrenCollapsible(false);  // We set this per widget..
+    //splitter->setCollapsible(splitter->indexOf(SF),false);
+    //splitter->setStretchFactor(splitter->indexOf(SF),0);
 
-    splitter_sizes=gSplitter->sizes();
-    gSplitter->layout();
-    gSplitter->update();
+    splitter_sizes=splitter->sizes();
+    splitter->layout();
+    splitter->update();
 
 
     QTextCharFormat format = ui->calendar->weekdayTextFormat(Qt::Saturday);
@@ -344,20 +344,20 @@ Daily::~Daily()
     if (previous_date.isValid())
         Unload(previous_date);
 
-    delete gSplitter;
+    delete splitter;
     delete ui;
 }
 void Daily::AddGraph(gGraphWindow *w)
 {
     Graphs.push_back(w);
 
-    gSplitter->addWidget(w);
-    w->SetSplitter(gSplitter);
+    splitter->addWidget(w);
+    w->SetSplitter(splitter);
 }
 void Daily::resizeEvent (QResizeEvent * event)
 {
     //const QSize &size=event->size();
-  //  gSplitter->setMinimumWidth(size.width()-280);
+  //  splitter->setMinimumWidth(size.width()-280);
 }
 
 void Daily::ReloadGraphs()
@@ -489,7 +489,7 @@ void Daily::on_calendar_selectionChanged()
 }
 void Daily::ResetGraphLayout()
 {
-    gSplitter->setSizes(splitter_sizes);
+    splitter->setSizes(splitter_sizes);
 
 }
 void Daily::ShowHideGraphs()
@@ -510,10 +510,10 @@ void Daily::ShowHideGraphs()
             }
         }
     }
-    gSplitter->setMinimumHeight(vis*default_height);
-    //gSplitter->setMaximumHeight(vis*default_height);
-    gSplitter->layout();
-    gSplitter->update();
+    splitter->setMinimumHeight(vis*default_height);
+    //splitter->setMaximumHeight(vis*default_height);
+    splitter->layout();
+    splitter->update();
     RedrawGraphs();
 }
 void Daily::Load(QDate date)
@@ -544,7 +544,7 @@ void Daily::Load(QDate date)
     UpdateEventsTree(ui->treeWidget,cpap);
 
     if (!cpap && !oxi) {
-        gSplitter->setMinimumHeight(0);
+        splitter->setMinimumHeight(0);
         NoData->setText(tr("No data for ")+date.toString(Qt::SystemLocaleLongDate));
         NoData->show();
         for (int i=0;i<Graphs.size();i++) {
@@ -575,18 +575,18 @@ void Daily::Load(QDate date)
         if (!cpap) {
             SF->hide();
         }
-        //gSplitter->setMinimumHeight(0);
-        gSplitter->setMinimumHeight(vis*default_height);
+        //splitter->setMinimumHeight(0);
+        splitter->setMinimumHeight(vis*default_height);
         //if (vis>4) {
-        //gSplitter->setMaximumHeight(vis*default_height);
+        //splitter->setMaximumHeight(vis*default_height);
         //} //else {
        // }
-        gSplitter->layout();
+        splitter->layout();
 
        // spacer->show();
     }
 
-    gSplitter->update();
+    splitter->update();
     RedrawGraphs();
 
     QString epr,modestr;
diff --git a/daily.h b/daily.h
index 0a93a07a..ef439029 100644
--- a/daily.h
+++ b/daily.h
@@ -11,7 +11,6 @@
 #include <QScrollArea>
 #include <QMenu>
 #include <QAction>
-#include <QSplitter>
 #include <QWidget>
 #include <QTreeWidget>
 #include <QLabel>
@@ -20,9 +19,9 @@
 #include <SleepLib/profiles.h>
 #include <Graphs/graphwindow.h>
 #include "mainwindow.h"
-//#include <Graphs/graphdata.h>
+#include "Graphs/gSplitter.h"
 #include "Graphs/gLineChart.h"
-#include <Graphs/gFlagsLine.h>
+#include "Graphs/gFlagsLine.h"
 namespace Ui {
     class Daily;
 }
@@ -102,7 +101,7 @@ private:
     Profile *profile;
     QDate previous_date;
     MyScrollArea *scrollArea;
-    QSplitter *gSplitter;
+    gSplitter *splitter;
     QLabel *NoData;
     QWidget *spacer;
     QMenu *show_graph_menu;