12/12/94
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            | MicroStation PC Driver (DOS 386 Protected Mode 4.0) |
            =======================================================

This driver supports MicroStation PC 4.0 for the DOS 386 protected mode
environment. The first time this driver is used, it will present the user with a
menu of all available resolution modes. One must be selected, and then a
configuration file will be created that the driver will use for subsequent
MicroStation sessions.

To re-configure the driver, erase the files \USTAT40\DRIVERS\ *.CFG and run the
USTATION.bat  file again.


MicroStation PC 4.0 Driver Installation
---------------------------------------
1. Now, the drivers are located in a directory ( e.g. C:\TRIODRV\PMUSTAT4 ),
   after the steps of Section " Decompressing Drivers " in Chapter " Software
   Installation " of manual completed.

2. Copy the following files to the \USTAT40\DRIVERS directory from
   C:\TRIODRV\PMUSTAT4:

   MGL4S3.EXP
   MGL4S3.MA
   MGL4S3.MGL

3. Change the current directory to the \USTAT40 sub-directory, or the one which
   contains the MicroStation application.

4. Run the USCONFIG program to select the new device driver.
   a. Select "Display Adapters" entry.
   b. Select "VENDOR SUPPLIED DRIVER" option.
   c. Select "PMGL4S3 v1.XX for S3 Accelerators" option.
   d. Select second adapter options as needed.
   e. Select Swap Screen Status "Y" or "N".
   f. Select "Exit and Save".
   g. Run USTATION.bat from the \USTAT40 subdirectory.
   h. Select the desired mode from the list of supported resolutions.
   i. MicroStation PC 4.0 will now be launched.
This driver will work with a Hercules-compatible MDA card as the second graphics
device. This can be configured as either the "Primary" (right screen) or
"Secondary" (left side) graphics device.

SWAP screen capabilities are supported if a 256 color mode is configured. If the
initialization code is unable to determine which mode to use, it will always
default to the 640 x 480 x 256 color mode. The driver will exit if it is not
able to find an S3-based graphics card.
