1. WIN98.ZIP Driver
2. RELEASE.TXT File Contents

RELEASE.TXT Driver File Contents (WIN98.ZIP)

Build 0.48 Release Notes

This release includes additional support for the following game titles and demos:
	
	"Unreal" from Epic Megagames - D3D version.  This driver fixes the following
            reported problems:
                Rainbow colors on some textures
		Controller time-lag issues (when registry settings noted below are used)
                Texture dropouts due to W-buffering problems
                Missing textures

	"Descent3" demo from Outrage Entertainment/Parallax Software
	"Rogue Squadron" from LucasArts
	    This driver fixes the following problems for the these two applications:
                Texture dropouts and other visual artifacts caused by W-buffering issues

Setting the Recommended Registry Settings for "Unreal"
	Run the REGEDIT program (START menu, choose "RUN", type REGEDIT and press RETURN)
	Click the plus sign next to "HKEY_LOCAL_MACHINE" to view the sub-categories)
	Click the plus sign next to "Software" to view the sub-categories)
	Click the plus sign next to "Microsoft" to view the sub-categories; (NOTE you
               may need to scroll within the window to see "Microsoft")
	Look for "UnrealD3D" under "Microsoft" (sub-categories should be listed alphabetically)
	If "UnrealD3D" does NOT exist, add it by right-clicking on "Microsoft" and choosing 
             New|Key from the pop-up menus.  Re-name the new key "UnrealD3D". You should be able to type a new name when you create
             the new Key, but you can also right-click the Key name to rename it.
	Right-click on "UnrealD3D" and choose New|DWORD from the pop-up menu.  Rename the
             new DWORD to "DoFlip".
	Double-click on "DoFlip" and set the value to 1.  Make sure that "hexadecimal"
             is checked rather than "decimal."  
	Exit the Registry editor, your changes are automatically saved.
	
			
Known Issues

  Win95/98	Texture download issues in the game "Unreal" may cause occasional
		stuttering.  NVIDIA continues to work with Epic to resolve this.

  Win98-PCI
		Users may experience GPFs (general protection faults) when 
		exiting some OpenGL applications (Chick Berry and 3DMaze screen
		saver) if their desktop color depth is set to 8 bits.  3DMaze may 
		also cause a GPF in 16-bit color.

  Windows NT 4.0
		Fails some WHQL 3D tests, but performance and stability are not compromised.


This driver is Build 0.48 of the NVIDIA Reference Driver. This 
release of the display driver is to be used with boards based on the RIVA TNT 
chip. This release includes drivers for both WinNT4.0 and Win95/98 in either an 
AGP or PCI configuration. This Reference Driver is supplied to board 
manufacturers for their use in developing fully supported drivers customized for 
their specific board configuration. While we expect this driver to operate correctly 
on RIVA TNT based boards, we are not able to provide full product support for 
other manufacturers products. It is recommended that end users install the 
drivers supplied from their board manufacturer to receive full product support.

If you were using a Win95 driver from a board manufacturer that also provided a 
Control Panel applet, (like Diamond’s InControl Tools, STB’s Vision, etc.) that 
applet will not work correctly with the NVIDIA Reference Driver and can cause 
system problems. It should be removed before these new drivers are installed. 
(See Installing from non-NVIDIA drivers, below.)

System Requirements to use the NVIDIA Reference Drivers

Win95 System requirements:
- OSR2 for full AGP functionality (which includes Microsoft's OPENGL32.DLL)
- Microsoft's OPENGL32.DLL
- Microsoft’s Dx5 or greater
- 2MB disk space

Win98 System requirements
- Microsoft’s Dx5 or greater
- 2MB disk space

WinNT System requirements:
- Service Pack 3 
- 2MB disk space

Downloading the NVIDIA Reference Drivers: 

To download the Build 0.48 Reference Drivers begin by 
clicking on the correct driver version for your system. 

select WIN9x048ag.ZIP to install drivers on Win95 AGP systems
select WIN9x048p.ZIP to install drivers on Win95/98 PCI systems
select NT4048.ZIP to install drivers on WinNT systems

This will download the compressed driver to your system. Save it in a temporary 
directory on your system disk.
	example: c:\RIVATNT
The following sections will help you install our latest Win95/98 or WinNT display 
drivers which include the OpenGL ICD driver.

Win95 Installation Information: 

Before installing the new drivers it is recommended that you have a copy of your 
current drivers, usually supplied with your board. 

If not previously installed, you will need to install these on your system first:

1. OSR2 or later for AGP systems (usually pre-installed on AGP systems).  
(Optionally, the USB supplement is needed for full AGP functionality. This should 
have
been included with your system or motherboard. See your system 
manufacturer’s web site for this file.)
2. Install Dx5 or greater (the final version of Dx6 is recommended). This is 
contained in your board vendor’s drivers, on the Microsoft web site, or on a 
recent DirectX application. It is recommended you install the latest Service Pack 
from Microsoft. You can obtain this by browsing for "Support Drivers, Patches 
and Service Packs" \ "Windows 95 Updates" from:    
http://www.microsoft.com/msdownload/default.htm
The final version of Dx6 can be obtained from:
http://www.microsoft.com/directx/default.asp
3. If you have OSR2 or later installed on your system you should already have 
Microsoft’s OPENGL32.DLL installed on your system. If you do not already have 
a version of OPENGL32.DLL in your Windows\System, or you have another 
vendor specific OPENGL32.DLL file installed, you need to install Microsoft’s 
OPENGL32.DLL. You can obtain this file and other required files from:
ftp://ftp.microsoft.com/Softlib/MSLFILES/opengl95.exe

When you are ready: 
4. Unzip the ZIP file you downloaded to an empty folder (such as C:\RIVATNT).
5. Close all programs 
6. Install the driver using the Display Properties dialog box:
Click Start, then Settings, then Control Panel.
Start the "Display" applet program. 
Select the "Settings" tab
Push the "Change Display Type" button (or the “Advanced Properties” 
button).
Push the "Change" button in the "Adapter Type" area.
The "Select Device" dialog box will appear, push the “Have Disk” button.
Specify the path to the new unzipped driver by pressing “Browse…” 
After selecting the correct path press “OK”. 
Click “OK” twice to install the new drivers. Close down the open windows.
7. After successfully installing the reference drivers, you will need to restart the 
operating system for the new drivers to take effect.

Windows 98 Installation Information
1.Unzip WIN9xxxx.ZIP to an empty folder (such as C:\RIVATNT).
2. Close all programs 
3. Install the driver using the Display Properties dialog box:
Click Start, then Settings, then Control Panel.
Start the "Display" applet program. 
Select the "Settings" tab.
Push the "Advanced Properties” button.
Select the “Adapter” tab.
Push the “Change” button.
Push the “Next” button.
Select the radio button labeled “Display a list of all the drivers in a specific 
location…” 
Push the “Have Disk” button and specify the location where you unzipped 
the files.  The system should find a .inf file in the location you specify.  
Press “OK”. 
Click “OK”, then “Next”, then “Finish”
4. After successfully installing the reference drivers, you will need to restart the 
operating system for the new drivers to take effect.


WinNT Installation Information:

Before installing the new drivers it is recommended that you have a copy of your 
current drivers, usually supplied with your board. 

If not previously installed, you will need to install this on your system first:

1. Install Microsoft's Service Pack 3 for Windows NT 4.0 on your system. You 
can obtain this by browsing for "Support Drivers, Patches and Service Packs" \ 
"Windows NT Service Packs" from:    
 http://www.microsoft.com/msdownload/default.htm
	
When you are ready: 
2. Unzip NT.ZIP to an empty folder. 
3. Close all programs
4. Choose NT's Start\Settings\Control Panel\Display\Settings\Display 
Type\Change\Have Disk\Browse.
5. Locate the folder with the unzipped reference drivers...Display should list 
NVIDIA RIVA TNT
6. After NT successfully installs the reference drivers, you will need to restart the 
operating system for the new drivers to take effect.

Installing from non-NVIDIA drivers:

If you are installing the NVIDIA Reference Drivers and presently have non-
NVIDIA supplied drivers installed, it is recommended that you uninstall your 
existing driver’s Control Panel tools before installing the NVIDIA Reference 
Drivers. Our driver does not include the hooks in it to support the tools provided 
by other board manufacturers. As a result, their tools will not operate correctly 
with the NVIDIA Reference Drivers and could cause system problems if you try 
to use them with our drivers. The best way to uninstall drivers is to use an 
uninstall utility provided by your board manufacturer. Please contact them for 
information on how to uninstall their tools. 

Uninstalling NVIDIA drivers:

If you have a need to do this, first start by uninstalling Control Freak. To do this 
use the Add/Remove Programs dialog box:
Click Start, then Settings, then Control Panel.
Start the "Add/Remove Programs" applet program. 
Select Control Freak, and click “Add/Remove”.
You will now be able to re-install your original driver on the system.

General information for all users.

About OpenGL:
The NVIDIA Reference Driver Build 0.48 includes our latest 
version of the OpenGL ICD for RIVA TNT. This OpenGL ICD is now available for 
both Windows 95 and Windows NT.  It accelerates rendering of OpenGL 
applications when:
  - Display is set to 16-bits per pixel or 32-bits per pixel
  - Enough video memory exists to support the OpenGL resolution requested
  - Microsoft's OPENGL32.DLL is correctly installed

Several pre-release versions of the OpenGL ICD have previously been made 
available through the Internet. This version should be much more stable, and 
should perform better in almost all cases.

Microsoft's OpenGL will auto-detect that the RIVA products have hardware-
accelerated OpenGL available, and use that whenever possible.  If OpenGL 
applications complain about missing  required DLL's, or if you are seeing 
unusual OpenGL behavior, then it is likely that either you are missing 
OPENGL32.DLL, or that an application shipped with a version of 
OPENGL32.DLL that is not compatible with the RIVA OpenGL ICD.  You should 
look in the application's directory for a file called OPENGL32.DLL, and rename it. 
The application will then use the OPENGL32.DLL from the Windows\System or 
WinNT\System32 directory. You also can obtain the correct OPENGL32.DLL is 
by re-installing it from the WindowsNT CD.

About Control Freak:

Also included in the NVIDIA Reference Drivers is our Control Panel applet, 
Control Freak. This applet adds a RIVA tab to the Display Properties Dialog box. 
There are several useful controls and setting information here. To learn what 
each setting can do, just right click on the setting to get an information box.

Additional information:

The files included with the Build 0.48 Reference Drivers:

PCI files:
NV4.VXD 
NV4AGP.INF
NV4CPL.DLL
NV4CPL.HLP
NV4DD32.DLL
NV4DISP.DRV 
NV4MINI2.VXD
NV4OGL.DLL
NV4RM.VXD 
NVARCH16.DLL 
NVARCH32.DLL 

AGP files:
NV4.VXD 
NV4AGP.INF
NV4CPL.DLL
NV4CPL.HLP
NV4DD32.DLL
NV4DISP.DRV 
NV4MINI2.VXD
NV4OGL.DLL
NV4RM.VXD 
NVARCH16.DLL 
NVARCH32.DLL 
VGARTD.VXD

NT 4.0 files:
NV4OGLNT.DLL
NV4_DISP.DLL
NV4_MINI.SYS
NV4_DISP.INF

Modes supported in Build 0.48

These are the Win95 and WinNT modes now supported by the drivers in this 
release:

Resolution	BitDepth	Max Refresh Rate	 Max Refresh Rate
				at 8 and 16bpp		 at 32bpp

320x200		8,16,32		70,72,75,85,100,120	 120  (DDraw only)
320x240		8,16,32		60,70,72,75,85,100,120	 120  (DDraw only)
400x300		8,16,32		60,70,72,75,85,100,120   120  (DDraw only)
480x360		8,16,32		60,70,72,75,85,100,120   120  (DDraw only)
512x384		8,16,32		60,70,72,75,85,100,120	 120  (DDraw only)
640x400		8,16,32		70,72,75,85,100,120	 120  (DDraw only)
640x480		8,16,32		60,70,72,75,85,100,120,  240 
				140,144,150,170,200,240
800x600		8,16,32		60,70,72,75,85,100,120,  240
				140,144,170,200,240
960x720		8,16,32		60,70,72,75,85,100,120   120  (DDraw only)
1024x768	8,16,32		60,70,72,75,85,100,120,  170
				140,144,150,170
1152x864	8,16,32		60,70,72,75,85,100,120,  140
				140,144,150
1280x1024	8,16,32*	60,70,72,75,85,100,120	 100
1600x1200	8,16,32**	60,70,72,75,85		  75

1920x1080	8,16*,32**	60,70,72,75,85		  72
1920x1200	8,16*,32**	60,70,72,75	 	  60

*Requires an 8MB framebuffer
** Requires a 16MB framebuffer