Index: sources/gui/qml/pages/MainStack.qml
===================================================================
diff -u -r7cc15ae5968205b241a08ca4646f283b8bf97b03 -r821bf955d0ba7e028bccfee7c04ca77cf80a0bd4
--- sources/gui/qml/pages/MainStack.qml	(.../MainStack.qml)	(revision 7cc15ae5968205b241a08ca4646f283b8bf97b03)
+++ sources/gui/qml/pages/MainStack.qml	(.../MainStack.qml)	(revision 821bf955d0ba7e028bccfee7c04ca77cf80a0bd4)
@@ -55,14 +55,17 @@
 
     ScreenItem { id: _faultModeScreen
         PlaceHolderText { screenName: qsTr("FAULT  MODE") }
+        onVisibleChanged: if (visible) _mainMenu.hidden = true
     }
 
     ScreenItem { id: _serviceModeScreen
         PlaceHolderText { screenName: qsTr("SERVICE  MODE") }
+        onVisibleChanged: if (visible) _mainMenu.hidden = true
     }
 
-    ScreenItem { id: _InitialModeScreen
+    ScreenItem { id: _initialModeScreen
         PlaceHolderText { screenName: qsTr("INITIAL  MODE") }
+        onVisibleChanged: if (visible) _mainMenu.hidden = true
     }
 
     MainHome                        { id: _mainHome
@@ -73,7 +76,7 @@
     Connections { target: vHDOperationMode
         onFaultChanged              : { page( _faultModeScreen                  , vfault                    )}
         onServiceChanged            : { page( _serviceModeScreen                , vservice                  )}
-        onInitChanged               : { page( _InitialModeScreen                , vinit                     )}
+        onInitChanged               : { page( _initialModeScreen                , vinit                     )}
         onStandbyChanged            : { page( _mainHome                         , vstandby                  )}
         onValidateParametersChanged : { page( _preTreatmentCreateStack          , vvalidateParameters       )}
         onPreTreatmentChanged       : { page( _preTreatmentMainStack            , vpreTreatment             )}