suppress doCancelAction

platform/platform-impl/src/com/intellij/ide/customize/CustomizeIDEWizardDialog.java

@@ -139,6 +139,11 @@ public class CustomizeIDEWizardDialog extends DialogWrapper implements ActionLis
     }
   }
 
+  @Override
+  public void doCancelAction() {
+    // lets pretend it is the wind..
+  }
+
   @Override
   protected void doOKAction() {
     for (AbstractCustomizeWizardStep step : mySteps) {