Name:         Mac OS 8.1 Update

Version:      n/a

Released:     January 18, 1998 (Reposted February 27, 1998)

US English Mac OS 8.0. If you are using an non-US English version
of Mac OS 8.0, please install the localized version of this
software, which is expected to be available within 90 days of
the release of the US English Mac OS 8.1 Update.

This software updates Mac OS 8.0 to Mac OS 8.1. Includes bug
fixes and feature enhancements. For complete information, please
see all documentation included with this software and
point your web browser to "Mac OS 8.1 Late Breaking Tips",

This software is available four different ways. Each method of
obtaining this software will provide you the exact same software.

(a.) One MacBinary 16MB self-mounting Disk Copy image
(b.) One Binhexed 16MB self-mounting Disk Copy image
(c.) Thirteen MacBinary parts of a 16MB self-mounting Disk Copy image
(d.) Thirteen Binhexed parts of a 16MB self-mounting Disk Copy image

If you choose (a.) or (b.), download this self-mounting image to
your hard drive and then double-click it to uncompress and mount
the disk image on your desktop. Please read the documents
included on this disk image before installing the software.

If you choose (c.) or (d.), download all 13 parts to your hard
drive and then double-click on the first segment to uncompress
and mount the disk image on your desktop. Read the documents
included on this disk image before installing the software.

You may wish to download the 13 parts instead of the individual
16MB self-mounting image if you are a using a modem connection or
if you wish to transport "Mac OS 8.1 Update" to another machine
via floppy.

NOTE: This update is offered in MacBinary (.bin) and Binhex
(.hqx) formats. Please choose the option that is the most
convenient for you to download. MacBinary format may make the
download time quicker. If your web browser or ftp client is not
configured for MacBinary, or if you experience problems
downloading using MacBinary, you can download the Binhex posting
of this software. You will receive the same software no matter
which option you download.

About Mac OS 8.1 Update

What's new in Mac OS 8.1 Update and CD-ROM

* Mac OS Extended Format
Mac OS 8.1 now supports a new volume format called Mac OS
Extended format. The hard disk format supported by Mac OS version
8.0 and earlier is Mac OS Standard format. Mac OS Extended format
optimizes the storage capacity of large hard disks by decreasing
the minimum size of a single file.  As an example, on a 4 GB hard
drive a file containing only 4K of information requires 64K of
space in Mac OS Standard format, whereas with the Mac OS Extended
format, it will require the actual 4K on the 4 GB hard disk. 

Existing hard disks formatted with Mac OS Standard format will
continue to function and be supported by Mac OS 8.1. To determine
whether a disk was initialized with Mac OS Standard format or Mac
OS Extended format, select the disk, and choose "Get Info" from
the File menu.  

If you want to use Mac OS Extended format on one or more of your
hard disks, please refer to the About Mac OS Extended Format
document. For additional help in creating and using a Mac OS
Extended format volume as a start up volume, please go to: 

* Universal Disk Format  1.0 (UDF)
UDF is a new industry standard file format. The version of UDF in
Mac OS 8.1 supports UDF formatted CD ROM discs and UDF formatted
DVD ROM discs. In order to use a UDF formatted DVD ROM disc, your
computer must have a DVD ROM drive and the appropriate driver.
UDF requires a 2x or faster CD ROM or DVD ROM drive.

* LaserWriter 8.5.1
LaserWriter 8.5.1 adds support for IP printing, Custom Page Size,
PostScript 3 printers, Acrobat PDF files in the Save as File
option.  It also improves support for ColorSync and adds support
for Desktop Printer Utility.

* PC Exchange 2.2 
PC Exchange supports VFAT and FAT32 volume formats as used by
Windows 95. Support for Long File Names (LFN), DOS (FAT) file
system and FAT32 support for 4 GB Volumes has also been added. PC
Exchange now has better support for removable media, such as Jaz,
Zip, and PMO.

Problems with Pinnacle Magnetic Optical DOS formatted drives,
Maxtor SCSI hard drives, PC formatted Quantum 160MB hard drives
and SCSI DOS drives greater than 1 GB have been addressed.

PC Exchange will now mount drives over 1 GB.

Get Info now shows the correct number of items on a DOS disk.

PC Exchange now works with shared folders.

* Open Transport 1.3.1
Open Transport 1.3.1 provides improved performance and single-link
multihoming support. Complete details are provided in OT 1.3.1

* Finder
Now has improved performance when copying to and from shared

* Sound 
Previously, audio management was determined by your computer, now
your applications control audio input and output setups. There is
a new control strip module which allows easier user selection of
sound input source. 

Mute selection in the Monitors & Sound control panel retains its
settings with volume changes.

Mac OS 8.1 CD Additions

* Location Manager 2.0.1
Now works on all Mac OS computers.

* QuickDraw 3D 1.5.3
Fixed incompatibilities with some high-end 3D rendering

* Mac OS Runtime for Java 2.0
This is Apple's implementation of Sun's JDK 1.1.3 specification.
More information provided in the Mac OS Runtime for Java 2.0

* Internet Explorer
Microsoft Internet Explorer is now the default Browser for clean
install or new computers. Internet Explorer uses Apple's MRJ as
its Java engine. 

If you use Internet Setup Assistant to register with an ISP, the
Netscape Navigator Browser will be used.

* Find File 
Find File has been added to the Apple Menu when the Mac OS 8.1 CD
is used to startup your computer so that you can find a file
easily.  The copy feature of the Find File (or dragging a file
from the Items Found window) does not work because the startup
volume is locked. If you need to copy a file that you found, open
its enclosing folder by double-clicking on it in the lower part
of the Items Found window.

Known Issues with Mac OS 8.1 

* When doing a custom install from the Mac OS 8.0 CD or Mac OS
8.1 CD, if a component is selected which is newer in Mac OS 8.1,
a dialog will be presented which states that a newer version
already exists. This will give you the option of selecting the
older or newer version. Select the newer version because the
older version may not be compatible with Mac OS 8.1. 

IMPORTANT When using the Mac OS 8.1 CD, the installer first runs
the Mac OS 8 installation and then automatically runs the Mac OS
8.1 Update, LaserWriter 8.5.1, and OpenTransport installations.
This occurs when you are doing either an Easy Install, a Custom
Install, or Custom Remove.

* Acrobat 3.0
Because of installation order requirements, please refer to the
About Adobe Software document.

* Netscape Navigator 4.04
If you do not already have an ISP (Internet Service Provider) and
plan on using the Internet Setup Assistant to obtain one,
register for one before upgrading to Netscape Navigator 4.04
which has been provided on the Mac OS 8.1 CD in addition to
Netscape Navigator 3.01. Existing accounts will work without any
problems, but you may not be able to create any new ISP accounts
once you have upgraded to Netscape Navigator 4.04.

* Display Name Change
AppleVision 750 and 850 displays were recently renamed ColorSync
Displays.  Mac OS 8.1 delivers a new Monitors & Sound Control
panel which will identify these monitors as ColorSync Displays.
You can continue to use the AppleVision 750 or 850 ColorSync
profiles as they are identical to the renamed versions.

* DVD disc won't mount after bootable CD
If you have a DVD ROM drive connected to your computer and start
up the computer with a bootable CD ROM disc in the drive, but not
as the boot volume, you may not be able to use DVD discs until
you  remove the CD ROM disc and restart the computer. To use the
DVD ROM drive make sure you do not have a bootable CD ROM disc in
the drive when starting the computer unless you are booting from
it. After starting the computer, you may then use both CD ROM and
DVD discs. 

* Password Security and booting from Mac OS Extended
When using a Mac OS Extended formatted drive as your start up
disk, the Password Security control panel will not function
properly. Do not use the Password Security control panel if you
plan to password protect and then start up from a Mac OS Extended
formatted volume.

Do not try to reformat a disk drive which currently is password

* LocalTalk PCI
Mac OS 8.1 installs a new extension on some models called
LocalTalkPCI which is a PowerPC version of the LocalTalk driver.
This new driver provides improved performance when using
LocalTalk. However, this improved performance can cause some
LocalTalk printers to be invisible when using the Chooser to
select a printer. If you encounter this problem use the
Extensions Manager to disable LocalTalkPCI and the printer will
become visible and selectable.

The following items do not effect Macintosh 68K and Power
Macintosh 6100/7100/8100 series computers, nor Mac OS compatibles
based upon the Power Macintosh 6100/7100/8100 series.

* With Mac OS 8.1, the Sound control panel found in the Apple
Extras folder can no longer be used to set the sound input
source. Use the Monitors & Sound control panel or a new control
strip module to change the input source. 

* Changing the volume in the Sound control strip module will not
unmute the computer. If you have selected the mute check box in
the Monitors & Sound control panel, you must use Monitors & Sound
to unmute the computer.

* When using the PC Compatibility software with a DOS compatible
system, you may need to manually select the sound input source
after inserting an audio CD. The PC Compatibility software plays
sounds through the CD input source, so you must select CD input
in the Monitors & Sound control panel or the SoundSource control
strip module to hear sounds from the PC Card.

* When using Apple Speech Recognition version 1.4.1 software on
some computers, an error will be reported that your microphone is
not standard or is not connected. This error is reported when
turning on the Speakable Items feature. To avoid the error,
select "none" as the sound monitor source before turning on this
feature, then change the monitor source to "Microphone". This
error may be ignored, and the Speech Recognition software can be
used normally. This will occur on PCI-based computers and some
PowerPC-based PowerBook computers.

* Use QuickDraw GX 1.1.6 or later with Mac OS 8.1.

* Desktop Printer Utility
Desktop printers created with the Desktop Printer Utility will
not appear configured in the Chooser, but the printer will still
operate normally.

To create a printer in a different AppleTalk zone, do not use the
Desktop Printer Utility found in the Apple Extras folder. Use the
Chooser from the Apple Menu to create the printer.

Apple Language Kits
* Apple language kits and Mac OS 8
Apple's language kits require an updater for full functionality
with this version of the Mac OS.  The Language Kit Updater for
Mac OS 8 can be downloaded from the software updates area of
Apple's Web site, America Online, and other sites where Apple
software updates are available.

After an Apple language kit is installed on a Mac OS 8.1 system
you must also install the Language Kit Updater for Mac OS 8. 
Following that, you must open the Language Kit Additions folder
within the Extensions folder and remove all LaserWriter and
PrintLib files which have a version earlier than 8.5.  Not
removing these files can cause the application to unexpectedly
quit when you attempt to print.

Apple does not recommend installing system software by making a
copy of an existing system folder because important files used
when starting up may not be found and the system software will
have to be reinstalled.

* Mac OS Extended and Language Kits
The Disk Tools PPC that is supplied with Mac OS 8.1 is intended
for use with the primary script and English. If you are using a
Language Kit (secondary script) you must use the Mac OS 8.1 CD.
If you use a Disk Tools PPC floppy which you have created to
startup the computer, file and volume names that were created
with the secondary script will appear scrambled or missing. If
you attempt to change any of them, the files may become lost.

* G3 PowerBooks and PowerBook 3400
AppleTalk zones are unavailable when booting from the Mac OS 8.1
CD on G3 PowerBooks and PowerBook 3400.

* ARA 3.0 
If you are going to install ARA 3.0, do not select the Apple
Remote Access optional install when installing Mac OS 8.1. Do not
install ARA 2.1 over 3.0.

When using ARA 3.0 do not use Internet Dialer as the connection
application, instead use the Remote Access to connect.

* Video Cards
While starting up on some computers, the screen may flash, go
black and reappear. This is normal and occurs when a ROM video
driver is replaced by a newer driver in the system folder. It
occurs with some Apple and third party video cards.

* Apple Video Player MPEG movies
If Apple Video Player cannot find an MPEG movie due to the
movie's title, use MoviePlayer's import command.

* Apple Video Player
There is a problem recording video in Apple Video Player when the
'no compression' option is selected and Virtual Memory is turned
off. When you stop recording, the computer may appear to hang for
two to four minutes and the following error message "An error
occurred while trying to record" appears and you will not be able
to save the recording. To avoid this problem turn Virtual Memory
on or select a different compression option.

Compatibility Issues with Third Parties

* Mac OS 8.1 and Mac OS Extended format issues
There are several types of programs that may be incompatible with
Mac OS 8.1 and the new Extended format: Utilities that check the
integrity of a disk volume; Programs that provide password
security for volumes; Audio and video programs that write data
directly to the volume.  
Please contact the vendor of the program for revised versions. 

* Norton Utilities 
Norton Utilities 3.5.3 is compatible with Mac OS Standard
volumes, but Mac OS Extended volumes are treated as remote
volumes and cannot be accessed.
If you are using the Norton Utilities for Macintosh 3.5.1 or
earlier, do not run the following Norton Utilities on a Mac OS
Extended volume: Disk Doctor, Speed Disk, Wipe Info, FileSaver,
UnErase, Volume Recover, and Disk Editor. Later versions of the
Norton Utilities for Macintosh will support the Mac OS Extended
format and will be available on the Symantec web site:

* Conflict Catcher
Conflict Catcher is not compatible with the Mac OS 8.1. Casady
and Greene has requested Apple disable the program due to the
severity of this incompatibility. If the files are found, an
error message will indicate the Conflict Catcher extension is
located in the Mac OS Extension folder and must be disabled
before installing Mac OS 8.1. Please contact Casady and Greene
for version 4.1 which is compatible with Mac OS 8.1 by calling
(408)484-9228 or visiting their Web site at

* PGPdisk 1.0
Functions correctly on Mac OS 8.1 provided the PGPdisk volume
file is located on a Mac OS Standard volume. If it is located on
a Mac OS Extended volume, you will get an error after the
passphrase is entered for that volume, and it will not appear on
the desktop. All data remains intact. To access the volume, you
need to either obtain PGPdisk 1.0.1 or move the volume file to a
Mac OS Extended volume. Contact PGP at for
information regarding updates.

* PC Cards 
Because of changes in Mac OS 8.1 some third-party PC Card drives
will no longer function. Some updated drivers have been provided
in the CD Extras folder. Please contact the PC Card vendor for
other drivers as needed. 

* Quarterdeck Mail (also known as Microsoft Mail for Networks)
Client applications, versions 4.1 and earlier, are not compatible
with Mac OS 8.1. For information on upgrading to version 4.2,
please contact StarNine/Quarterdeck at or

* AdobePS 8.5.1
If your printer comes with the AdobePS 8.5.1 installer and you
wish to continue using other LaserWriter printers follow the
steps outlined here. 

Before installing AdobePS 8.5.1, find and move the PrintingLib
extension from the Extensions folder to your desktop. Install
AdobePS 8.5.1. Drag the PrintingLib extension from your desktop
back into the Extensions folder. A dialog will warn you that a
file with that name already exists: click ok to replace it with
the one from your desktop. The version of PrintingLib that is
available with Mac OS 8.1 includes all of the functionality of
AdobePS 8.5.1.

If you have already installed AdobePS 8.5.1, find and move the
PrintingLib extension to the Trash. Then install Mac OS 8.1.

Mac OS 8.0 Issues not fixed with Mac OS 8.1 

* PowerBook 1400 computers and Apple Video Player
There is no support in Apple Video Player for the PowerBook 1400
series computer. Open the MoviePlayer application found in Apple
Extras folder to view MPEG files using QuickTime MPEG software.

* PowerBook 190, 190c, and 5300c computers 
On PowerBook 190, 190c or 5300c computers the display may appear
blank when you first restart after installing Mac OS 8, or after
resetting PRAM. This is because the power manager is being
updated on the PowerBook. Restarting the PowerBook once more time
will result in a normal screen. To shut down the PowerBook
safely, press the Power button one time (which brings up the
shutdown dialog box) then press the Return key.

* MBDF virus and Mac OS 8
If you notice that the menubar becomes white and disables the
menubar clock, your computer may be infected with the MBDF virus.
With previous versions of the Mac OS, you may not have noticed
that your computer was infected with this virus. Use a virus
detection application to identify and remove MBDF and other
viruses from your computer.

* Please refer to the Mac OS 8 Read Me and for other known issues.