invalid window parameter: number_value

    Facility: DEBUG, VMS Debugger

    Explanation: The value specified was out of range of the screen
    on which the window will be placed. If the debugger is placing
    its windows on a terminal screen, the beginning row and column
    numbers must be between 1 and the height and width of the screen,
    and the beginning value plus the height or width of the window
    must not exceed the height or width of the terminal screen.
    If the debugger is running with the DECwindows interface, the
    beginning row and column numbers must be greater than 0.

    User Action: Specify valid parameters for the window row and
    column values, and for the height and width of the window.