diff -ru umbrello-3.5.6.orig/umbrello/umbrello/umldoc.cpp umbrello-3.5.6/umbrello/umbrello/umldoc.cpp
--- umbrello-3.5.6.orig/umbrello/umbrello/umldoc.cpp	2007-01-15 03:24:47.000000000 -0800
+++ umbrello-3.5.6/umbrello/umbrello/umldoc.cpp	2007-03-18 03:21:32.000000000 -0700
@@ -147,15 +147,10 @@
     if ( pApp->getListView() )
         connect(this, SIGNAL(sigObjectRemoved(UMLObject *)), view, SLOT(slotObjectRemoved(UMLObject *)));
 
-    UMLView * previousView = pApp->getCurrentView();
     pApp->setCurrentView(view);
     if ( ! m_bLoading ) {
-        if (previousView == NULL) {
-            view -> show();
-            emit sigDiagramChanged(view ->getType());
-        } else {
-            view -> hide();
-        }
+    	view->show();
+	emit sigDiagramChanged(view ->getType());
     }
 
     Settings::OptionState optionState = Settings::getOptionState();