diff --git a/samples/dnd/dnd.cpp b/samples/dnd/dnd.cpp
index f0fe76f904..eee1decc30 100644
--- a/samples/dnd/dnd.cpp
+++ b/samples/dnd/dnd.cpp
@@ -1185,8 +1185,6 @@ DnDShapeFrame::DnDShapeFrame(wxFrame *parent)
              : wxFrame(parent, -1, "Shape Frame",
                        wxDefaultPosition, wxSize(250, 150))
 {
-    SetBackgroundColour(*wxWHITE);
-
     CreateStatusBar();
 
     wxMenu *menuShape = new wxMenu;
@@ -1210,16 +1208,20 @@ DnDShapeFrame::DnDShapeFrame(wxFrame *parent)
     SetDropTarget(new DnDShapeDropTarget(this));
 
     m_shape = NULL;
+    
+    SetBackgroundColour(*wxWHITE);
 }
 
 DnDShapeFrame::~DnDShapeFrame()
 {
-    delete m_shape;
+    if (m_shape) 
+        delete m_shape;
 }
 
 void DnDShapeFrame::SetShape(DnDShape *shape)
 {
-    delete m_shape;
+    if (m_shape) 
+        delete m_shape;
     m_shape = shape;
     Refresh();
 }
diff --git a/src/gtk/slider.cpp b/src/gtk/slider.cpp
index c611e0e480..996c428eaa 100644
--- a/src/gtk/slider.cpp
+++ b/src/gtk/slider.cpp
@@ -112,6 +112,7 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id,
     if (style & wxSL_LABELS)
     {
         gtk_scale_set_draw_value( GTK_SCALE( m_widget ), TRUE );
+	gtk_scale_set_digits( GTK_SCALE( m_widget ), 0 );
 
         /* labels need more space and too small window will
            cause junk to appear on the dialog */
diff --git a/src/gtk1/slider.cpp b/src/gtk1/slider.cpp
index c611e0e480..996c428eaa 100644
--- a/src/gtk1/slider.cpp
+++ b/src/gtk1/slider.cpp
@@ -112,6 +112,7 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id,
     if (style & wxSL_LABELS)
     {
         gtk_scale_set_draw_value( GTK_SCALE( m_widget ), TRUE );
+	gtk_scale_set_digits( GTK_SCALE( m_widget ), 0 );
 
         /* labels need more space and too small window will
            cause junk to appear on the dialog */