I am using the tab MDI manager to manage my MDI forms in an application.  The application allows the user to reorder them by dragging the tab to the order they choose.  Another part of the application will hide those forms between loads of another MDI child.  Again another part will show the hidden forms.  When the application shows the now hidden forms they are reordered to the original order they where added in.  This should not happen it should maintain the order the user chose.