This section contains important information you should read before working with ColorSync version 2.5
ColorSync version 2.5 requires Mac OS version 7.6.1 or newer, running on a Power Macintosh or on a 68K Macintosh computer with a 68020 or greater processor.
To avoid conflict with ColorSync, it is recommended that you remove or turn off any monitor calibration utilities, such as the IMS Twin Turbo control panel, that adjust gamma or modify other calibration values. You should also remove any items in the Startup Items folder than invoke such a utility.