Hi Hellice, I'm sorry to say this, but you provided us with too less information in order to help you. Could you please go into more detail. with best regards Jochen -- View this message in context: http://vtk.1045678.n5.nabble.com/vtkMFCwindow-bug-tp5713559p5713567.html Sent from the VTK - Users mailing list archive at Nabble.com.