Description: This is a repost of the Macintosh 8•24 GC Video Card software previously
posted here. It is intended for use with System 7.1 and earlier. It is not
fully compatible with System 7.5. Version 1.1, included in this archive,
is for use with System 6.
The enclosed file is a self-extracting archive. To use, download, double-click the downloaded file (this decompresses it).
WHAT IS THE 8•24 GC SOFTWARE?
The 8•24 GC software is a control panel device that enables graphics acceleration with the Macintosh™ Display Card 8•24 GC.
WHAT DO I NEED TO USE THE 8•24 GC VERSION 7.01 SOFTWARE?
You must have the following installed in your Macintosh:
—System 7.0 or greater (do NOT use System 6.0.x)
—an 8•24 GC card
—a minimum of 3 megabytes of RAM
HOW TO INSTALL THE 8•24 GC SOFTWARE
1. Insert the 8•24 GC disk into your computer's floppy disk drive.
2. Drag the 8•24 GC icon to the system folder on your startup disk. System 7 will
install this in the Control Panels folder for you.
3. You will need to restart your Macintosh for the software to be fully installed.
PLEASE NOTE: The 8•24 GC software is not designed for use with 68040 (Quadra) Macintosh computers. Although the software can be copied into Control Panels, acceleration is permanently disabled.
AFTER YOU INSTALL
Restart your computer. A rocket will appear and travel up your screen. This indicates that the software has been installed correctly and acceleration is enabled.
If the rocket does not travel up your screen and instead appears with a red circled line through it, there has been a problem installing the software. Please check your 8•24 GC manual for troubleshooting information.
KNOWN 3RD PARTY PRODUCT PROBLEMS WITH THE 8•24 GC
The following is a list of known problems running 3rd party applications with 8•24GC acceleration. Developers are being notified of these problems. In some cases, the developer has already addressed the problem and a resolution is listed, preceded by an "∞."
Until new versions are available from the 3rd party companies below, a temporary workaround for any of these bugs is to disable acceleration on the 8•24 GC card. To do this, choose Control Panels from the Apple menu. Find and select the 8•24 GC icon. In the box that appears at the top of the 8•24 GC Control Panel, click the icon with a circled line through it to turn acceleration off. When you turn acceleration on or off in the Control Panel, the change takes effect immediately; that is, you don't have to choose Restart.
• MacRenderman™ 1.1
When you try to render a ".rib" file from RenderApp™ you will get a bus error
some time during the rendering process. We recommend that you disable
acceleration before attempting this process, since it may take some time
for the bug to surface, and your rendering process will need to be restarted.
This problem is caused by MacRenderman's access of various reserved fields
in QuickDraw data structures. The developer has been notified of the issue.
• Aldus PageMaker™ 4.01
When using an Adobe Type Manager™ font with PageMaker 4.01, no text appears on
the screen when you type.
∞ This problem has been fixed in Aldus PageMaker 4.2
• Macromind Director™ 3.1
While running an animation sequence, you will notice some screen corruption
around moving objects. Please note that other programs or games created with
Macromind Director will display similar screen corruption. The developer has been
notified of this problem.
• ImageStudio™ 1.7
After launching ImageStudio, you will notice that the palette below the untitled
document window, which is supposed to be grayscale, is solid black. We have
notified the developer of this issue.
• DesignStudio™ 2.0
While scrolling up and down through pages of text, you will notice that some of
the text will appear smeared on the screen. The problem does not result in data
corruption or system locks. The developer has been notified of this problem.
• Aldus SuperPaint 3.0
When running Aldus SuperPaint 3.0 random bus errors can occur. The developer has
been notified of this issue.
• Image™ 1.26f
The LUT display on the left side of the screen is white instead of grayscale or
color. Text drawn on the screen will appear fuzzy. Images will appear with extra
dots. We have notified the developer of this problem.
• FullWrite Professional™ 1.6(p1)
Text that is highlighted disappears when you release the mouse. The developer has
been notified of this problem.
• ClickChange™
With ClickChange™ enabled, the system will hang when you switch between colors
and grays in the monitor control panel. Sometimes it takes a couple of times
before your system will actually hang. The developer has been notified of the
issue.
• Radius Rocket™
The Radius Rocket is not compatible with the display card 8•24 GC.
• Microsoft Flight Simulator 4.0™
With the screen set to 4-bits per pixel or higher (16 colors), you will get a bus
error upon launching Flight Simulator 4.0.™ This is an incompatibility related
to Flight Simulator's access of reserved registers in the 680X0 that are used
by system software. The developer has been notified of the issue.
• Maxima RAM disk™
Maxima™ causes portions of the menu titles and/or areas behind some menus to be
filled with corrupted data (random data). This problem will occur more frequently
if the cards are placed in the high numbered NuBus slots (e.g. $e or slot 6 on the
IIfx). Technically, this RAM disk is moving information from RAM into ROM address
space which is reserved for Apple software. We have notified the developer of this
issue.
• AfterDark™ 2.0v (fish module only)
When the "fish" module is active, you will notice a decrease in performance - the
fish swim slower with the 8•24 GC acceleration ON. Technically, this is caused by
misalignment of the fish pixmap drawings themselves, which leads to non-optimal
performance. Other than this, the module works fine. This is likely to be fixed in
future versions of the module.
• Startup Manager™
When using Startup Manager to change the order that your INITs are launching,
and if the 8•24 GC rocket appears on the second row, there will be slight screen
corruption when the rocket flies. NOTE: This is an on-screen artifact only,
and does not affect performance or data.
• "ECS" or Engineering Capturing System™
When running the "Symbol" application, you will see 3 extra horizontal lines when
the screen depth is set to 8-bits per pixel.
• A general note about games
Most games will not be accelerated by the 8•24GC card. Technically, this is
most often caused by the developer not using GWorlds for animation.
KNOWN APPLE SOFTWARE COMPATIBILITY ISSUES WITH THE 8•24 GC CARD
• If you are using Chinese Talk II please make sure it is version 1.1 or greater.
• Please note that the 8•24GC card does not accelerate the display of TrueType™ fonts. For optimum performance, install the appropriate size bit-map
