diff --git starmath/source/view.cxx starmath/source/view.cxx
index f00036f..a4e56ab 100644
--- starmath/source/view.cxx
+++ starmath/source/view.cxx
@@ -211,6 +211,7 @@ void SmGraphicWindow::MouseButtonDown(const MouseEvent& rMEvt)
             pEdit->GrabFocus();
         }
     }
+    GrabFocus();    //So that we can get KeyInput
 }
 
 void SmGraphicWindow::GetFocus()
@@ -345,6 +346,8 @@ void SmGraphicWindow::KeyInput(const KeyEvent& rKEvt)
 {
     if (! (GetView() && GetView()->KeyInput(rKEvt)) )
         ScrollableWindow::KeyInput(rKEvt);
+    Invalidate(); //to simulate the required repaint at each caret movement or repaint 
+                  //that occurs when a character is entered and the formula changes.
 }