This article is an overview and description of System 7.5 Update 1.0. For specific installation instructions, refer to the System 7.5 Update 1.0 Read Me file. System 7.5 Update 1.0 is a set of software enhancements that improves the performance and reliability of Macintosh computers running System Software 7.5.
When installed after Macintosh System Software version 7.5, this update provides enhancements to the system software (the Launcher, system extensions, and control panels) and applications; it also provides solutions for problems encountered by some Macintosh computer users.
What the System 7.5 Update 1.0 Provides:
The update installs a file called System 7.5 Update in your System Folder. The new file provides the following enhancements to System 7.5:
Low Memory Situations
Improves system stability when memory is very low.
Japanese Systems with QuickTime 2.0
Fixes a potential crash problem when shutting down or restarting Japanese systems with QuickTime 2.0 installed.
Pasting Large Data Blocks
Fixes a potential crash problem when pasting large blocks of data.
Alias Opens Correct Original
No longer opens the wrong original when you select an alias on the desktop of a disk other than the startup disk.
Custom Colors In Applications
No longer interferes with custom colors that some applications use in the Open and Save dialog boxes.
Keyboard Power Key
The keyboard Power key can now be used to turn the computer off. To shut down the computer, press the Power key. When the dialog box appears, you can shut down your computer, restart your computer, put it to sleep (if it supports sleep) or cancel the shutdown.
System 7.5 Update 1.0
PowerBook 100 Series
These computers do not have a Power key on their built-in keyboard. However, if you attach an external keyboard, the keyboard Power key can now be used to turn the computer off. To shut down the computer, press the Power key. When the dialog box appears, you can shut down your computer, restart your computer, put it to sleep, or cancel the shutdown.
PowerBook Duo Dock and Duo Dock II
Pressing the eject button automatically launches items in the Shutdown Items folder and shuts down the computer. No dialog box appears.
PowerBook 500 Models
Improves trackpad performance.
PowerBook 150
The update extends battery life by reducing power requirements during sleep mode. It also fixes a potential system freeze problem that occurs when you use the internal modem several times without restarting the computer. The PowerBook 150 Update system extension is no longer needed and is automatically removed from the Extensions folder (inside the System Folder) during installation.
Power Macintosh
Native QuickDraw speeds up operations such as scrolling, image filtering, and pattern and text drawing. The updated Serial Driver fixes a potential crash problem.
Power Macintosh (including Macintosh computers w/the Power Macintosh upgrade card and the Centris 660AV, Quadra 660AV, and Quadra 840AV)
Updated video software prevents scrambled video when the computer starts up.
Macintosh: Performa 630 series, PowerBook 150, Quadra 630, and LC 630 (models with internal IDE hard disks)
The update fixes a problem that prevents the internal IDE disk from appearing on the desktop. The problem occurs when the internal IDE disk is the selected startup disk, but the computer is started up from an external hard disk by holding down the
–Shift–Option–Delete keys during startup. The MountIDE system extension is no longer needed and is automatically removed from the Extensions folder (inside the System Folder) during installation.
Macintosh Quadra 700
An Apple Desktop Bus (ADB) patch fixes a potential problem that can slow down the mouse or trackball.
Macintosh Quadra 840AV
The updated Display Manager ensures that a multi-sync monitor is set to the correct resolution when you restart the computer.
Additional Enhancements
In addition, enhancements have also been made in the Launcher, the System Extension, the Control Panel, applications (such as SimpleText, and Find File), and the LaserWriter version 8.2 Printer Driver. See the System 7.5 Update 1.0 Read Me file for complete details.
What System 7.5 Update 1.0 Does Not Provide
Problem with PC Setup 1.0.2 (on the Macintosh SE, Plus, Classic, Portable, and PowerBook 100 Series)
If you use the Custom Install option, do not install PC Setup on a Macintosh SE, Plus, Classic, Portable, or PowerBook 100 (models with the 68000 processor). When installed on these models, PC Setup causes the system to crash. Easy Install does not install PC Setup on any of these models.
Apple Menu Options “Recent Documents” and Application Launch Time
“Recent Documents” tracking in Apple Menu Options monitors all files that are opened, even those opened by an application as part of its launch sequence (for example, drop-in filters used by desktop publishing packages). This can significantly slow down the launching of such applications. At present, the solutions are to disable “Recent Documents” tracking in the Apple Menu Options control panel or turn off Apple Menu Options via the Extensions Manager, or inside the control panel itself.
Reset Apple Menu Options
The update returns all settings in the Apple Menu Options control panel to their default values. If you have made any changes to Apple Menu Options, you need to select them again.
Macintosh Centris/Quadra 660AV, Quadra 840AV, and Alert Sounds
If you have a Macintosh Centris/Quadra 660AV or Quadra 840AV, some system alert sounds may not play correctly with the Alert Volume turned down. To avoid the problem, keep the Alert Volume turned all the way up and adjust the Built-in system volume. (To adjust Built-In volume, open the Sound control panel and choose Volumes from the pop-up menu.)
Problem with Guides on Some Power Macintosh Models
If you have a Power Macintosh and have trouble opening the Tutorial, Macintosh Guide, Shortcuts, or other Apple Guide databases, you may have extra files that do not belong on your computer.
To solve the problem, follow these steps:
MathLib Installed on Non-Power Macintosh Systems
The update installs the Math Functions Library in the Extensions folder on some non-Power Macintosh systems, even though it is intended exclusively for Power Macintosh systems. Unless you have a Power Macintosh or plan to install a Power Macintosh upgrade card, you may remove the file by dragging it to the Trash.
Setting AppleTalk to Inactive while File Sharing is on
If you set AppleTalk to Inactive, either through the Chooser or the Control Strip, while File Sharing is on, the Sharing Setup control panel will show File Sharing is on. File Sharing is actually off. Ô£ø STEP ACTION
1 Open the Extensions folder (inside the System Folder) and drag the PowerBook Guide Additions file to the Trash.
2 Unless your computer is an AV model, drag the following items to the Trash:
• Video Guide Additions • Video Player Guide Additions • Speech Guide Additions
