DSIBM.DRV PATCH
        
                A lot of people had asked me if I could patch AutoCAD (tm) version 
        2.17 so it would work on an IBM PCjr (tm).  Well, after a few grueling hours 
        of "Try and Try Again", I finally did it.  The method I used was to copy the 
        DSIBM.DRV driver to a file called DSIBMJR.DRV.  I then proceded to look for 
        certain key operations that take place in the program.  Then I pached those 
        areas that needed patching and PRESTO, AutoCAD (tm) 2.17c runs on an IBM PCjr 
        (tm).
        
                I am providing a SCRIPT file and a batch file that will produce the 
        DSIBMJR.DRV driver from the DSIBM.DRV driver.  In order to run the PATCH.BAT 
        file properly you will need DEBUG.COM and a COPY of the DSIBM.DRV file.  I 
        would advise just making a system disk using the FORMAT A:/S command and 
        copying DEBUG.COM, PATCH.BAT, PATCH.SCR, and DSIBM.DRV onto it.  This makes 
        the whole process much simpler.
        
                After performing the above mentioned tasks, just insert the patching 
        disk in drive A: and type:
        
        A>PATCH
        
                The batch file will do all the patching.  When the batch file is 
        finished just copy DSIBMJR.DRV to your AutoCAD (tm) Drivers disk.  The next 
        step will be to install the driver in the overlay file so it will work.  To do 
        this simply enter AutoCAD (tm) and select the configuration option which is 
        selection 5 from the main menu.  Now select the video display option, 3, and 
        answer yes to the question.  A listing of all the available display drivers is 
        shown on the screen.  Look down the list and lo and behold there is an option 
        to select the IBM PCjr (tm).  Select the number to the left of the new driver 
        and answer all the questions associated with it.  Save the changes and give it 
        a whirl.  If the program still doesn't work then it is possible that the 
        version you have is different.  In that case this patch will not help.
        
                If you do have the correct version though, it will now run properly on 
        your computer.  Happy CADDIN'.
        
        The originator of this patch is Jeff McKee.
        
        IBM and IBM PCjr are trademarks of the International Business Machines 
        Corporation.
        
        AutoCAD is a trademark of AutoDesk INC.