title: pygtk - dynamically update the widgets taking input from the gtk combo box
body: <p>On selecting value from 1 to 10 from gtk combox box it should populate the checkbox by taking combo box value as an input. Say for example if i select 5 then 5 checkbox will be generated.
  It works.. But the issue is after i selected 5 now im selecting next value as 3 from combo box then there 8 checkboxes are displayed. The old 5 checkbox didnt get replaced. Is there any way to refresh the vbox(which has the checkboxes) or update to a new value. </p>
  
  <p>Enviroment : FC10 , Glade 2 , Python 2.5 , GTK.</p>