The Unix version normally uses the curses display access mechanism. It
should make effective use of the screen-editing features of the terminal
(VT-100 or emulation of same, or whatever) to keep the screen updated.
However, this requires that all of the system facilities for dealing with
terminals (TERM environment variable, terminfo database,
stty behavior, etc.) be working properly.
If, for any reason, this doesn't
work for you, you can turn the curses mechanism off completely by placing the
no_cursor option in your initialization file, or using the
-no_cursor command-line switch at program startup.
You can also place the no_console option in your initialization file, or use the
-no_console command-line switch at program startup, to disable all
special input/output processing completely. This should even
make it possible to use the program from a printing device, or to redirect
input or output to files.
When using curses, it normally tries to use the insert/delete line
capabilities of your terminal device to update the screen more efficiently.
For certain terminal or modem configurations, this may be
counterproductive. If so, you can turn this feature off
by giving the command-line switch
-no_line_delete at program startup.
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