THE 80 COLUMN MODE COMMAND HAS BEEN 
INSTALLED IN YOUR BOOT FILE.

NOW YOU CAN COPY THE MODE.COM PROGRAM
FROM YOUR DOS DISK BY PLACING YOUR DOS
DISK IN DRIVE A: AND THE WORKING DISK 
IN DRIVE B:.  THEN TYPE THE COMMAND:

COPY MODE.COM B: <RETURN>

IF YOU HAVE A SINGLE DISK DRIVE, A 
MESSAGE ON THE SCREEN WILL TELL YOU 
WHEN TO REMOVE THE DOS DISK AND 
REPLACE IT WITH THE WORKING DISK.

YOU CAN REMOVE THIS DISK NOW, LEAVING
THE INSTRUCTIONS ON THE SCREEN.