DOCUMENT:Q106742  08-DEC-1993  [W_NT]
TITLE   :External Monitor on Toshiba 4400sx Monochrome Doesn't Work
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:BUGLIST3.10 FIXLIST3.10.003

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The information in this article applies to:

 - Microsoft Windows NT operating system version 3.1
 - Microsoft Windows NT Advanced Server version 3.1
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SYMPTOMS
========

You cannot get the video to work correctly under Windows NT on a
Toshiba 4400sx monochrome computer with an external monitor. This is
caused by the Western Digital (WD) video driver. The WD driver
expects the WD chip set on the 4400sx to be standard when in fact it
is a slightly modified version designed specially for the Toshiba
monochrome computer. The WD driver does not use the proper unlocking
code and is not able to write anything to the video adapter.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT and
Windows NT Advanced Server version 3.1. This problem was corrected in
the latest U.S. Service Pack for Windows NT and Windows NT Advanced
Server version 3.1. For information on obtaining the Service Pack,
query on the following word in the Microsoft Knowledge Base (without
the spaces):

   S E R V P A C K

Additional reference words: 3.10
KBCategory:
KBSubCategory: DEVDRVR

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Copyright Microsoft Corporation 1993.