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  1. ******************************************************************************************
  2. *                                                                                        *
  3. *                              Updated AGA monitor 31kHz hack                            *
  4. *                                                                                        *
  5. ******************************************************************************************
  6.  
  7.  
  8. What you get:   Multiscan 704x496 31.3kHz/60Hz
  9.                 DBLPAL    360x248 31.3KHz/60Hz
  10.                 DBLNTSC   360x248 31.3kHz/60Hz
  11.                 
  12.  
  13. Limitations:  (1)  Some programs (rare) will show a messed up screen when using
  14.                   DBLNTSC. For those programs you can use the DBLPAL driver.
  15.                   The BootControl program forces the usage of DBLNTSC in some
  16.                   conditions. 
  17.                   
  18.                   
  19.               (2)  The mouse pointer still has the dissapearing after x>660
  20.                   bug. This is due to the fact that the monitor driver code
  21.                   really needs to be rewritten to produce the proper Copper
  22.                   lists.
  23.  
  24.               (3)  Some programs may need to run at 30kHz to avoid color 
  25.                   problems with the DBLNTSC driver (rare). You can use MonEd
  26.                   to temporarily do this when required.
  27.                   
  28. Advantages:   (1)  Better and larger display when using VGA monitors on an AGA
  29.                   Amiga. the Multiscan hack may also work with ECS. 
  30.                   
  31. Notes:    You can tweak the settings to get 704x500 31.5kHz/60Hz with MonEd.
  32.          However, my monitor looks brighter at 31.3kHz.
  33.          
  34. Files that are included:
  35.  
  36.                                overscan.prefs
  37.                                Multiscan.info
  38.                                DBLNTSC.info
  39.                                DBLPAL.info
  40.                                MonEd
  41.                                MonEd.readme 
  42.                                BootControl 
  43.                                BotControl.doc 
  44.                                ScanHack.txt
  45.                                PromoteView  
  46.                                
  47.      All of these files are contained in ScanHack.lha.
  48.      
  49. How to install:
  50.  
  51.                 (1) Make a backup of your original overscan.prefs file.
  52.                 (2) Make backups of your Multiscan.info, DBLNTSC.info, and
  53.                       DBLPAL.info files.
  54.                 (3) Copy overscan.prefs to ENV:Sys and ENVARC:Sys.
  55.                       Cancel the Intuition requester that appears.
  56.                 (4) Copy Multiscan.info, DBLNTSC.info, and DBLPAL.info
  57.                       to Devs:Monitors.
  58.                 (5) Copy MonEd to C: if you like.
  59.                 (6) Copy Bootcontrol to C: if you like. Bootcontrol can be used
  60.                       to force programs to use DBLNTSC. Put the following line
  61.                       in your S:startup-sequence:                                                
  62.                                
  63.   C:BootControl MODE=VGA INSTALL BOOT GFX=BEST LOADVGA PATCHALERT QUIET READICON >NIL:
  64.   
  65.                 (7) Copy PromoteView to C: if you like. This program can be used
  66.                       to force programs that use a 15kHz View to use a different
  67.                       monitor driver. For instance you can type:
  68.                       
  69.                            PromoteView a9004
  70.                            
  71.                       Now all 15kHz Views will use DBLPAL. PromoteView wil then 
  72.                      wait for you to press control-c to cancel the hack.
  73.                      Unfortunately, this may temporarily undo the overscan.prefs
  74.                      hack. But for some programs, like the one used to view
  75.                      Eric Schwartz animations, it's the only thing that works.
  76.                      
  77.                  (8)  Now you should re-boot your system. The new settings should
  78.                      take effect.
  79.                      
  80.                      
  81.    Send any questions to:  Terry Miller 2 bitbrker@ionet.net