Wierd hidden characters

[Gunilla23851101a046]

Hi, is here anyone that knows why my hidden characters in InDesign suddenly looks like pirates and spiders?

[jmlevy]

Try to reset preferences: quit InDesign and relaunch it while holding down the Shift, Ctrl and Alt keys [Windows], Shift, Ctrl, Alt and Cmd keys [Mac] until you see a warning message asking for confirmation.