Basic Color Monitor (1.0)

Copyright 1993 Apple Computer, Inc.
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           THE BASIC COLOR MONITOR SYSTEM EXTENSION

This Read Me document tells you why you might want the Basic Color Monitor system extension, and how to install and to remove the extension.

The purpose of the Basic Color Monitor system extension is to eliminate the problem that Macintosh Quadra 700, 800, 900, and 950 and Macintosh Centris 610 and 650 users may have with overly green screen color on the Apple Basic Color Monitor and some non-Apple VGA (Video Graphics Array) monitors.

If you have one of these computers and are having problems with overly green screen color, you may want to try installing this extension.  It will correct the problem if you have an Apple Basic Color Monitor, and it may correct the problem if you have a non-Apple VGA monitor.

IMPORTANT: This system extension may cause some non-Apple monitors to go blank. You can correct this by disabling the system extension; follow the steps listed in ÒHow to Remove the Basic Color Monitor System Extension.Ó

HOW TO INSTALL THE BASIC COLOR MONITOR SYSTEM EXTENSION

To install the Basic Color Monitor system extension, follow these steps:

1.  Drag the Basic Color Monitor system extension from the Basic Color Monitor
    disk into your System Folder on your internal hard disk.

2.  When a message appears indicating that all system extensions should be
    stored in the Extensions folder, click OK.

3.  Restart your Macintosh.

¥  If your screen is still overly green: The Basic Color Monitor system
   extension doesnÕt correct the problem on your non-Apple VGA monitor.

¥  If your screen has gone blank: You need to remove the Basic Color Monitor
   system extension. Follow the directions in the next section.


HOW TO REMOVE THE BASIC COLOR MONITOR SYSTEM EXTENSION

The Basic Color Monitor system extension may cause some non-Apple VGA monitors to go blank. If this happens, you need to disable the extension. Because this system extension permanently writes to PRAM (programmable random-access memory), you cannot simply remove it from the Extensions folder.

To remove the Basic Color Monitor system extension, follow these steps:

1.  Restart your Macintosh.

2.  When you hear the beep, simultaneously hold down these four keys:

    ¥  Command
    ¥  Option
    ¥  P
    ¥  R

3.  When you hear another beep, release the keys.

4.  Hold down the Shift key while the computer is restarting.

5.  Drag the Basic Color Monitor system extension from the Extensions folder
    to the the Trash.

6.  Restart your Macintosh.

7.  Go to the Control Panels folder and reset any customized desktop parameters
    (such as mouse speed or desktop pattern).