Library /sys$common/syshlp/dbg$help.hlb DEBUG, Messages, UIISHIDDEN  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 the User Interface is currently hidden.

    Facility: DEBUG, VMS Debugger

    Explanation: Debug did not hide the UI because it is already
    hidden.

    User Action: No action necessary.