
               README.TXT - Documentation Supplement
                  January 20 1994 - Release 2.21
                                    
                     Hercules Graphite Card(tm)
                      Hercules Graphite Pro(tm)
                     Hercules Graphite VL/Pro(tm)

                       Installation Diskette
                   Windows Display Driver Diskette



  Thank you for purchasing a Hercules Graphite product.  This
  file contains changes or additions to the printed Installation 
  Guide.

  CONTENTS:
    What's New in Release 2.20/2.21
    Warranty Registration Card
    Hercules Phone, Fax and BBS Access Numbers
    AutoCAD -- Additional Installation Information
    AutoCAD -- Known Limitations
    SPEEDY: Windows Performance Benchmark Test
    Windows -- Known Limitations
    BigMap and Zoom -- Known Limitations
    Additional Information for QEMM386 Users
    Hercules Graphite Series Software Revision History



   What's New in Release 2.20/2.21
   -------------------------------
   Install diskette:
     1) New VESA.COM files -- release 2.32
     2) New ZOOM.EXE, WINSTALL.EXE, PICWIN.EXE, INSTALL.EXE and
        INSTALL.HLP.
     3) New monitor data files.
     4) New README.TXT file (this one).

   Windows diskette:
     1) NT drivers release 1.00.
     2) Bug fixes to Windows 3.1 drivers.
     3) Windows for Pen Computing is now supported at the following
        resolutions:

        Graphites with 1MB VRAM         Graphites with 2MB VRAM
        -----------------------         -----------------------
           640x480x8                       640x480x8
           640x480x16                      640x480x16
           800x600x8                       640x480x24
           1024x768x8                      800x600x8
           1152x900x4                      800x600x16
           1280x1024x4                     1024x768x8
                                           1024x768x16
                                           1152x900x8
                                           1280x1024x8


   Differences between release 2.20 amd 2.21:

   1) Windows diskette: New VDDAGX.386 to take care of the cursor
      problem in DOS screen.
   2) Install diskette: A different version of WINSTALL.EXE.
                        New readme.txt (this file).



   Warranty Registration Card
   --------------------------
   Please take a few minutes to fill out and return the enclosed
   Warranty Registration Card.  It is essential that we receive
   the card in order to provide you with the following service
   and support:

   *  Free technical support via phone, fax and Hercules BBS
   *  Software updates via mail and Hercules BBS
   *  Third party support information via mail and Hercules BBS

   Register today!


   Hercules Phone, Fax and BBS Access Numbers
   ------------------------------------------
   Hercules Sales Group.............(800) 532-0600
   Hercules Technical Support.......(510) 623-6050
   Fax..............................(510) 623-1112
   BBS..............................(510) 623-7449
   BBS..............................(510) 623-7034
   BBS..............................(510) 623-7142
   German BBS.......................+49 40 6573 7335
   CompuServe....................... GO HERCULES
   Other Inquiries..................(510) 623-6030


   AutoCAD -- Additional Installation Information
   ----------------------------------------------
   Installation of the Hercules DL-Xpress driver is very
   straightforward with a menu driven utility, and can be
   accomplished without printed documentation.  A full manual
   for the Vibrant driver is available for an additional charge.
   To order in the United States, send a check for $15.00 to
   Hercules along with a request fot the DL-Xpress manual.
   Outside of the United States, send a check for $25.00.
   Please allow 2-3 weeks for delivery.
   

   AutoCAD -- Known Limitations
   ----------------------------
   Dual-screen support (monochrome monitor used for text console) 
   for AutoCAD is not available on the Graphite Pro models for 
   the ISA-bus (HG310 and HG420).  Graphite Card (model HG210) 
   does support dual-screen AutoCAD when equipped with BIOS v1.15 
   or later and Graphite software release 2.0 or later.  All 
   local bus Graphite models DO support dual-screen AutoCAD.


   SPEEDY: Windows Performance Benchmark Test
   ------------------------------------------
   SPEEDY, a Windows performance benchmark test, is included
   with this Hercules product.  This test is designed to perform
   a standard set of Windows graphics functions and compute a
   performance metric called a "SPEEDMARK." A higher "SPEEDMARK"
   indicates better performance.  This test can also be used to
   measure performance of any display adapter that supports
   Windows.

   SPEEDY is available in the Hercules program group. Double-
   click on the Speedy icon to launch the SPEEDY program.  Press
   F2 to initiate an "Auto Run" test, F10 to exit the program,
   and F1 to view the on-line documentation.


   Windows -- Known Limitations
   ----------------------------
   1) Debugger Configurations:

      Graphite Pro models for the ISA-bus (models HG310 and 
      HG420) do not support the use of a debugger such as 
      CodeView or TDW, running on an 8-bit monochrome card
      under Windows. This is due to a limitation of the AGX015 
      chip when running on the ISA bus.  Local bus-based 
      Graphite VL Pro models (HG510, HG610, HG720) and the 
      ISA-based Graphite Card (HG210) do not have this 
      limitation.

   2) 16 Color Modes (Hercules Graphite Card - model HG210 only):

      If you are using a 50 or 66MHz CPU, you may experience
      random changes to the color palette at 1152 x 900 and 
      1280 x 1024 resolutions.  There is currently no known fix,
      you must restart Windows to restore the color palette.

   3) Running DOS Graphics Applications in a Window:

      It is not possible to run most VGA graphics applications
      in a windowed DOS session.  Instead, run your VGA
      graphics application full screen.

   4) Using Windows' VGA driver:

      If you want to use Windows' VGA driver, you must select
      "VGA (Version 3.0)" driver from the list of display driver
      in Windows' SETUP. Do not select the "VGA" driver.
      In general, we recommend you to use Graphite's 640x480x8
      driver because it is much faster, gives you more color depth
      (256 vs. 16) and provides higher refresh rates.



   BigMap and Zoom -- Known Limitations
   ------------------------------------
   Zoom is available in selected 256 color display modes only.  
   On 1MB Graphite models, zoom is supported at all 256 color
   resolutions (640x480, 800x600, 1024x768).  On 2MB Graphite
   models, zoom is supported at all 256 color resolutions except
   the 1152x900 and 1280x1024 modes. In addition, the 1024x768
   zoom mode is available only with monitors operating at 58kHz
   or below.  This restriction is due to special considerations
   for the high-speed DAC used on 2MB Graphite boards to provide
   the SuperStable high refresh display rates.  If you try to
   launch Zoom while in an unsupported display mode, a warning
   message will be displayed.

   If you are using the BigMap and Zoom features when your
   monitor is operating at 120Hz refresh rate, you may see some
   screen noise when you pan.


   Additional Information for QEMM386 Users
   ----------------------------------------

   If you are using QEMM386's Stealth feature (indicated by ST:M or ST:F
   on the QEMM386 device line in CONFIG.SYS) and you are experiencing
   random problems in Windows or DOS, try excluding the Graphite's BIOS
   area from Stealth by adding the parameter XST=C000 to your QEMM386
   device line.  This is in addition to the memory exclusion statements
   covered in the Graphite manual.


   Hercules Graphite Series Software Revision History
   ---------------------------------------------------
   Release 2.21 -- Graphite software release with Windows NT
                   drivers 1.00.
   Installation Diskette.......................Rel. 2.21 01/20/94
   Windows Display Driver Diskette.............Rel. 2.21 01/20/94

   Release 2.20 -- Graphite software release with Windows NT
                   drivers 1.00.
   Installation Diskette.......................Rel. 2.20 12/29/93
   Windows Display Driver Diskette.............Rel. 2.20 12/29/93

   Release 2.10 -- Second combined Graphite software release.
   Installation Diskette.......................Rel. 2.10 08/18/93
   Windows Display Driver Diskette.............Rel. 2.10 08/18/93

   Release 2.00 -- First release of combined diskettes for the
                   entire Graphite series of products.
   Installation Diskette.......................Rel. 2.00 07/26/93
   Windows Display Driver Diskette.............Rel. 2.00 07/26/93

   
   ** End of File **
