diff --git a/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/swing/common/MainWindow.java b/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/swing/common/MainWindow.java
index 6f27460..a5eada5 100644
--- a/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/swing/common/MainWindow.java
+++ b/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/swing/common/MainWindow.java
@@ -597,10 +597,15 @@ public class MainWindow extends TWindow {
             this.configWindow.setVisible(false);
         }
         
-        
         this.configWindow.doEnableEverything();
     }
     public void doDisableAlmostEverything() {
+        
+        if(this.configWindow == null) {
+            openConfigWindow();
+            this.configWindow.setVisible(false);
+        }
+        
         this.configWindow.doDisableAlmostEverything();
     }
 }