diff -r 761a618eee3a lib/irrlicht/source/Irrlicht/CGUIModalScreen.cpp
--- a/lib/irrlicht/source/Irrlicht/CGUIModalScreen.cpp	Mon Sep 01 17:53:51 2008 +0200
+++ b/lib/irrlicht/source/Irrlicht/CGUIModalScreen.cpp	Mon Sep 01 22:10:53 2008 +0200
@@ -24,7 +24,7 @@
 	setDebugName("CGUIModalScreen");
 	#endif
 	setAlignment(EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT, EGUIA_UPPERLEFT, EGUIA_LOWERRIGHT);
-	
+
 	// this element is a tab group
 	setTabGroup(true);
 }
@@ -32,7 +32,10 @@
 
 //! called if an event happened.
 bool CGUIModalScreen::OnEvent(const SEvent& event)
-{
+{
+	if (!IsEnabled || !isVisible() )
+		return IGUIElement::OnEvent(event);
+
     switch(event.EventType)
 	{
 	case EET_GUI_EVENT:
@@ -40,12 +43,24 @@
 		{
 		case EGET_ELEMENT_FOCUSED:
 			// only children are allowed the focus
-			if (event.GUIEvent.Caller != this && !isMyChild(event.GUIEvent.Caller))
+            if ( event.GUIEvent.Caller != this
+				&& !isMyChild(event.GUIEvent.Caller)
+				&& (!event.GUIEvent.Element
+					|| (	event.GUIEvent.Element->getType() != EGUIET_MODAL_SCREEN
+						&&	event.GUIEvent.Element->getType() != EGUIET_MESSAGE_BOX )
+					)
+				)
 				Environment->setFocus(this);
 			return false;
 		case EGET_ELEMENT_FOCUS_LOST:
 			// only children are allowed the focus
-			if (!(isMyChild(event.GUIEvent.Element) || event.GUIEvent.Element == this))
+			if ( (!isMyChild(event.GUIEvent.Element)
+					&& (!event.GUIEvent.Element
+						|| (	event.GUIEvent.Element->getType() != EGUIET_MODAL_SCREEN
+							&&	event.GUIEvent.Element->getType() != EGUIET_MESSAGE_BOX )
+						)
+			     )
+				|| event.GUIEvent.Element == this)
 			{
 				MouseDownTime = os::Timer::getTime();
 				return true;
@@ -69,7 +84,7 @@
 	default:
 		break;
 	}
-	
+
 	IGUIElement::OnEvent(event);
 
 	return true; // absorb everything else
@@ -78,7 +93,10 @@
 
 //! draws the element and its children
 void CGUIModalScreen::draw()
-{
+{
+    if ( !isVisible() )
+        return;
+
 	IGUISkin *skin = Environment->getSkin();
 
 	if (!skin)
@@ -147,13 +165,13 @@
 //! Writes attributes of the element.
 void CGUIModalScreen::serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options=0) const
 {
-	// these don't get serialized, their status is added to their children.
+    IGUIElement::serializeAttributes(out,options);
 }
 
 //! Reads attributes of the element
 void CGUIModalScreen::deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options=0)
 {
-	// these don't get deserialized. children create them if required
+	IGUIElement::deserializeAttributes(in, options);
 }
 
 
diff -r 761a618eee3a lib/irrlicht/source/Irrlicht/CGUIModalScreen.h
--- a/lib/irrlicht/source/Irrlicht/CGUIModalScreen.h	Mon Sep 01 17:53:51 2008 +0200
+++ b/lib/irrlicht/source/Irrlicht/CGUIModalScreen.h	Mon Sep 01 22:10:53 2008 +0200
@@ -30,7 +30,34 @@
 
 		//! Adds a child
 		virtual void addChild(IGUIElement* child);
-
+
+        //! Modalscreen is not a typical element, but rather acts like a state for it's children
+        //! isVisible is overridden to simulate a useful behaviour, but the same could probably be done
+        //! also be done by changing OnEvent and Draw correspondingly.
+		virtual bool isVisible() const
+		{
+		    // any parent invisible?
+			IGUIElement * parentElement = getParent();
+			while ( parentElement )
+			{
+				if ( !parentElement->isVisible() )
+					return false;
+				parentElement = parentElement->getParent();
+			}
+
+            // any child visible?
+			bool visible = false;
+			core::list<IGUIElement*>::ConstIterator it = Children.begin();
+			for (; it != Children.end(); ++it)
+			{
+				if ( (*it)->isVisible() )
+				{
+					visible = true;
+					break;
+				}
+			}
+			return visible;
+		}
 
 		//! draws the element and its children
 		virtual void draw();