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

 clipboard locked

    Facility: DEBUG, VMS Debugger

    Explanation: Some other DECWINDOWS application has locked the
    clipboard.

    User Action: Wait until the other application has released the
    clipboard.