diff --git a/Graphs/gGraphView.cpp b/Graphs/gGraphView.cpp
index 49b84805..0997e6b8 100644
--- a/Graphs/gGraphView.cpp
+++ b/Graphs/gGraphView.cpp
@@ -1747,12 +1747,12 @@ void gGraph::roundY(EventDataType &miny, EventDataType &maxy)
         return;
     }
 
-    if (maxy>=300) {
-        m=ceil(maxy/10.0);
-        t=m*10;
+    if (maxy>=400) {
+        m=ceil(maxy/50.0);
+        t=m*50;
         if (!ymax_good) maxy=t;
-        m=floor(miny/10.0);
-        if (!ymin_good) miny=m*10;
+        m=floor(miny/50.0);
+        if (!ymin_good) miny=m*50;
     } else if (maxy>=5) {
         m=ceil(maxy/5.0);
         t=m*5;
diff --git a/Graphs/gYAxis.cpp b/Graphs/gYAxis.cpp
index 88bf9a4c..8fa6384c 100644
--- a/Graphs/gYAxis.cpp
+++ b/Graphs/gYAxis.cpp
@@ -51,7 +51,7 @@ void gXGrid::paint(gGraph & w,int left,int top, int width, int height)
     static QString fd="0";
     GetTextExtent(fd,x,y);
 
-    double max_yticks=round(height / (y+10.0)); // plus spacing between lines
+    double max_yticks=round(height / (y+14.0)); // plus spacing between lines
     //double yt=1/max_yticks;
 
     double mxy=MAX(fabs(maxy),fabs(miny));
@@ -156,7 +156,7 @@ void gYAxis::paint(gGraph & w,int left,int top, int width, int height)
     static QString fd="0";
     GetTextExtent(fd,x,y);
 
-    double max_yticks=round(height / (y+12.0)); // plus spacing between lines
+    double max_yticks=round(height / (y+14.0)); // plus spacing between lines
 
     double mxy=MAX(fabs(maxy),fabs(miny));
     double mny=miny;