diff --git a/Graphs/gYAxis.cpp b/Graphs/gYAxis.cpp
index b83d2254..45ebfef8 100644
--- a/Graphs/gYAxis.cpp
+++ b/Graphs/gYAxis.cpp
@@ -137,128 +137,102 @@ gYAxis::~gYAxis()
 }
 void gYAxis::paint(gGraph & w,int left,int top, int width, int height)
 {
-    // may as well draw a cached texture here, and only update it when screen or graph is resized.
-    int x,y,yh=0;
+    if (height<0) return;
+    if (height>2000) return;
+    int x,y;
+    int labelW=0;
 
-    if (w.invalidate_yAxisImage) {
+    EventDataType miny=w.min_y;
+    EventDataType maxy=w.max_y;
 
-        if (!w.yAxisImage.isNull()) {
-            w.graphView()->deleteTexture(w.yAxisImageTex);
-            w.yAxisImage=QImage();
+    if (miny<0) { // even it up if it's starts negative
+        miny=-MAX(fabs(miny),fabs(maxy));
+    }
+
+    w.roundY(miny,maxy);
+
+    EventDataType dy=maxy-miny;
+
+    static QString fd="0";
+    GetTextExtent(fd,x,y);
+
+    double max_yticks=round(height / (y+14.0)); // plus spacing between lines
+
+    double mxy=MAX(fabs(maxy),fabs(miny));
+    double mny=miny;
+    if (miny<0) {
+        mny=-mxy;
+    }
+
+    double rxy=mxy-mny;
+
+    int myt;
+    bool fnd=false;
+    for (myt=max_yticks;myt>2;myt--) {
+        float v=rxy/float(myt);
+        if (v==int(v)) {
+            fnd=true;
+            break;
+        }
+    }
+    if (fnd) max_yticks=myt;
+    double yt=1/max_yticks;
+
+    double ymult=height/rxy;
+
+    double min_ytick=rxy*yt;
+
+
+    //if (dy>5) {
+    //    min_ytick=round(min_ytick);
+    //} else {
+
+    //}
+
+    float ty,h;
+
+    if (min_ytick<=0) {
+        qDebug() << "min_ytick error in gYAxis::paint() in" << w.title();
+        return;
+    }
+    if (min_ytick>=1000000) {
+        min_ytick=100;
+    }
+    lines=w.backlines();
+
+    GLuint line_color=m_line_color.rgba();
+    for (double i=miny; i<=maxy+min_ytick-0.00001; i+=min_ytick) {
+        ty=(i - miny) * ymult;
+        if (dy<5) {
+            fd=Format(i*m_yaxis_scale,2);
+        } else {
+            fd=Format(i*m_yaxis_scale,1);
         }
 
+        GetTextExtent(fd,x,y); // performance bottleneck..
 
-        if (height<0) return;
-        if (height>2000) return;
+        if (x>labelW) labelW=x;
+        h=top+height-ty;
+        if (h<top) continue;
+        w.renderText(fd,left+width-8-x,(h+(y/2.0)),0,m_text_color);
 
-        int labelW=0;
+        lines->add(left+width-4,h,left+width,h,line_color);
 
-        EventDataType miny=w.min_y;
-        EventDataType maxy=w.max_y;
-
-        if (miny<0) { // even it up if it's starts negative
-            miny=-MAX(fabs(miny),fabs(maxy));
-        }
-
-        w.roundY(miny,maxy);
-
-        EventDataType dy=maxy-miny;
-        static QString fd="0";
-        GetTextExtent(fd,x,y);
-        yh=y;
-
-        QPixmap pixmap(width,height+y+4);
-
-        pixmap.fill(Qt::transparent);
-        QPainter paint(&pixmap);
-
-
-        double max_yticks=round(height / (y+14.0)); // plus spacing between lines
-
-        double mxy=MAX(fabs(maxy),fabs(miny));
-        double mny=miny;
-        if (miny<0) {
-            mny=-mxy;
-        }
-
-        double rxy=mxy-mny;
-
-        int myt;
-        bool fnd=false;
-        for (myt=max_yticks;myt>2;myt--) {
-            float v=rxy/float(myt);
-            if (v==int(v)) {
-                fnd=true;
+        double z=(min_ytick/4)*ymult;
+        double g=h;
+        for (int i=0;i<3;i++) {
+            g+=z;
+            if (g>top+height) break;
+            lines->add(left+width-3,g,left+width,g,line_color);
+            if (lines->full()) {
+                qWarning() << "vertarray bounds exceeded in gYAxis for " << w.title() << "graph" << "MinY =" <<miny << "MaxY =" << maxy << "min_ytick=" <<min_ytick;
                 break;
             }
         }
-        if (fnd) max_yticks=myt;
-        double yt=1/max_yticks;
-
-        double ymult=height/rxy;
-
-        double min_ytick=rxy*yt;
-
-        float ty,h;
-
-        if (min_ytick<=0) {
-            qDebug() << "min_ytick error in gYAxis::paint() in" << w.title();
-            return;
+        if (lines->full()) {
+            qWarning() << "vertarray bounds exceeded in gYAxis for " << w.title() << "graph" << "MinY =" <<miny << "MaxY =" << maxy << "min_ytick=" <<min_ytick;
+            break;
         }
-        if (min_ytick>=1000000) {
-            min_ytick=100;
-        }
-
-        //lines=w.backlines();
-
-        for (double i=miny; i<=maxy+min_ytick-0.00001; i+=min_ytick) {
-            ty=(i - miny) * ymult;
-            if (dy<5) {
-                fd=Format(i*m_yaxis_scale,2);
-            } else {
-                fd=Format(i*m_yaxis_scale,1);
-            }
-
-            GetTextExtent(fd,x,y);
-
-            if (x>labelW) labelW=x;
-            h=(height-2)-ty;
-            h+=yh;
-#ifndef Q_OS_MAC
-            // stupid pixel alignment rubbish, I really should be using floats..
-            h+=1;
-#endif
-            if (h<0)
-                continue;
-
-            paint.setBrush(Qt::black);
-            paint.drawText(width-8-x,h+y/2,fd);
-
-            paint.setPen(m_line_color);
-            paint.drawLine(width-4,h,width,h);
-
-            double z=(min_ytick/4)*ymult;
-            double g=h;
-            for (int i=0;i<3;i++) {
-                g+=z;
-                if (g>height+yh) break;
-                paint.drawLine(width-3,g,width,g);
-            }
-        }
-        paint.end();
-        w.yAxisImage=QGLWidget::convertToGLFormat(pixmap.toImage().mirrored(false,true));
-        w.yAxisImageTex=w.graphView()->bindTexture(w.yAxisImage);
-        w.invalidate_yAxisImage=false;
-    }
-
-    if (!w.yAxisImage.isNull()) {
-        glEnable(GL_BLEND);
-        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-        glEnable(GL_TEXTURE_2D);
-        w.graphView()->drawTexture(QPoint(left,(top+height)-w.yAxisImage.height()+5),w.yAxisImageTex);
-        glDisable(GL_TEXTURE_2D);
-        glDisable(GL_BLEND);
-
     }
 }
 const QString gYAxis::Format(EventDataType v, int dp) {