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AST RESEARCH, INC.         SOFTWARE BULLETIN #0083                   02-06-90

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                     FOURPORT/DOS SOFTWARE RELEASE 2.00


Production Release version 2.00    Available February, 1990

Part Number:  910139-001           5.25" diskette  1 of 1

Includes enhancements and problem fixes of previous versions plus the
following:

    PROBLEMS RESOLVED:

    - The COMMBUFF program does not operate when two FourPort boards are
      installed in the system at once.  Both boards are configured for
      "enhanced" mode.  User cannot read I/O buffer.  (PR#A53002)

    - When the FourPort is installed in a Compaq 386/20 system, data must be
      sent to port number two to have the data appear at port number one.
      This occurs when using the COMMBIOS driver program.  (PR#A53003)

    - When installed in IBM PC as COM1:, FourPort will transmit but will not
      receive.  (PR#A53005)

    - DOS drivers did not work with Borland "Turbo Pascal" version 4.0.
      Ports could not be accessed with Pascal routines.  (PR#A53007)

    - FourPort/DOS drivers would not work with Microsoft "Fortran" version
      4.01. A "Null pointer error" is generated when linking the FourPort
      object modules with Fortran modules.  (PR#A53008)

    - The FourPort board would not operate in a Unisys XT clone. Interrupts
      are generated on IRQ 3 even though the FourPort board may be set for
      IRQ 4.  (PR#A53009)

Production Release version 1.00         Available January, 1987

This is the initial release of this product.