<b>Warning! Apple Displays 1.6 can cause errors and crashes when accessing OT- and ColorSync-related control panels

>>OTConfigLib<< error with Open Transport control panels Many many readers are reporting that, after installing the new Apple Displays 1.6 software in a Mac OS 8.1 system, they can no longer open Open Transport related control panels (such as TCP/IP, Modem, AppleTalk, and PPP). If they try, they get an error message that says something such as: The application "PPP" could not be opened because ">>OTConfigLib<<" could not be found.

Steven Halberstadt and Gabriel Rotskos found that the problem went away if they disabled the extension called Display Enabler (installed by Apple Displays 1.6).

Update: Disabling Display Enabler may have unwanted side effects. J. Baker started getting AppleVision did not load..." errors after installing Apple Displays 1.6. One remedy he tried was to disable Display Manager. This led to a modified version of the error that said "AppleVision did not load because an important component (Display Enabler) could not be found."

Sherry Jenks reports that Display Enabler may conflict with PPP Menu.

ColorSync-related crashes Daniel Grams, Tom Anderson, Michael Esser and Mark Garrett all report that, after installing Apple Displays 1.6, opening any ColorSync-related control panels (or using the "Color" function in Monitors and Sound) will cause a system crash, typically with a Type 3 error. [Note: Apple Displays 1.6 installs version 2.5 of ColorSync.] Charles Tucker had similar problems. He adds: "I eventually located the problem as either the Internet Preferences file for Internet Config or the Internet Access extension."

Update: Hugh Johnson and Lionel Woog report that their problems with Apple Displays (especially conflicts with ColorSync) were due to a shared library file called "Display Library" (also listed as DisplayLib 1.0b1) found in their Extensions folder. While it is an Apple file, it is not installed as part of the Mac OS. It appears to come with some games. For example, I found it included with Mars Rising (although it remained in the game's folder, rather than in the Extensions folder)

[As expected, not everyone reports having these problems.]