Desktop crashes when changing to Page 3,4 or 5

Desktop crashes, when changing to page 3,4 or 5. Restarting desktop leads into an imminent crash again. When I set back the page to a working one with using Next or Pig+Next while the desktop is down, it comes up again. Moving Pages to an other directory button doesn't change the behavior. Deleting them and creating blank ones does it. So it must be something wrong with the interior of those special pages. I can send you the showfile for analysis if nesessery.