diff --git a/src/generic/splitter.cpp b/src/generic/splitter.cpp
index c79934a3ea..703459522e 100644
--- a/src/generic/splitter.cpp
+++ b/src/generic/splitter.cpp
@@ -107,8 +107,8 @@ void wxSplitterWindow::Init()
     m_oldY = 0;
     m_firstX = 0;
     m_firstY = 0;
-    m_sashSize = 7;
-    m_borderSize = 2;
+    m_sashSize = 3;
+    m_borderSize = 0;
     m_sashPosition = m_requestedSashPosition = 0;
     m_minimumPaneSize = 0;
     m_sashCursorWE = wxCursor(wxCURSOR_SIZEWE);
@@ -121,9 +121,6 @@ void wxSplitterWindow::Init()
     m_facePen = (wxPen *) NULL;
     m_hilightPen = (wxPen *) NULL;
 
-    m_borderSize = 0;
-    m_sashSize = 3;
-
     InitColours();
 
     m_needUpdating = FALSE;
@@ -214,6 +211,12 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event)
         m_dragMode = wxSPLIT_DRAG_NONE;
         ReleaseMouse();
 
+        // exit if unsplit after doubleclick
+        if ( !IsSplit() )
+        {
+            return;
+        }
+
         // Erase old tracker
         if ( !isLive )
         {
@@ -754,7 +757,8 @@ void wxSplitterWindow::SizeWindows()
             DoSetSashPosition(newSashPosition);
         }
 
-        if ( newSashPosition == m_sashPosition )
+        if ( newSashPosition <= m_sashPosition
+            && newSashPosition >= m_sashPosition - GetBorderSize() )
         {
             // don't update it any more
             m_requestedSashPosition = INT_MAX;