Chips and Technologies, Inc.
Release Notes
655XX Display Driver Package
Windows NT 3.5x

Revision:      3.2.3
Release Date:  January 15, 1995
===============================

1. Modified the driver to correctly detect a change from a Chips
   VGA Controller to a non-Chips VGA Controller.

2. Fixed a hang problem with the MSDOS Prompt in F65535 and
   F65540.

3. Separated the drivers into two sections: BLTer Drivers
   (supports 64300/64310/65545/65548) and Non-BLTer Drivers
   (supports 64200/65510/65520/65530/65535/65540).




Revision:      3.2.1
Release Date:     August 25, 1995
=================================

1. Modified the driver to set the refresh rate as "hardware
   default" in the 640x480x24bpp (mode 50h) for the 65545
   controller. Earlier, the refresh rate was shown as 60Hz.

2. Fixed a hang problem with the 655xx PCI controllers.

3. Fixed a cursor garbage problem in 512K VRAM systems.



Revision:      3.2.0
Release Date:     May 31, 1995
===============================

1. Added support for BitBlt acceleration.

2. Added support for the Hardware Cursor.



Revision:      3.1.7
Release Date:     April 17, 1995
================================

1. Added support for 1024x768x256 colors, 640x480x64K colors and
   640x480x16M colors.

2. Added support for the panning feature.



NOTES: - WINDOWS NT  DRIVERS

1.   In the 800x600 and 1024x768 resolutions, the screen image is
     not displayed correctly on a CRT screen when the screen is
     panned to the bottom of the display and the user switches
     the display from LCD to CRT.

     The Windows driver uses the Check_Cursor and Move_Cursor
     routines to adjust the screen for panning. There is no
     routine similar to Check_Cursor in Windows NT.

     This limitation is caused by the absence of Check_Cursor
     routine in Windows NT.

     This problem is fixed as soon as the user touches the mouse
     pointer.

2.   When any of the selections in the "CURSORS" Applet from the
     Control Panel is chosen, the cursor becomes a software
     cursor and hence there is no panning.
     This is a limitation of the software cursor in Windows NT.



                CHIPS  CONFIDENTIAL  INFORMATION