System 7.1.2, At Ease 4.0, and Finder Crash (9/96)


When using At Ease 4.0 when running System 7.1.2, the Macintosh crashes with an unimplemented trap when entering the Finder. This problem occurs even when At Ease is installed, but turned off.

Though this issue has only been seen with the 7.1.3 Finder, it is
possible that some "drag aware" applications may also crash if they are
used while At Ease is installed.



You will need to restart the machine with a bootable disk (like
a floppy or CD-ROM). You should do one of the following:



* Update to System 7.5 (or later)

* Install the Macintosh Drag and Drop extension into the computer's
Extensions folder.



You may need to temporarily remove the At Ease Startup extension in order to utilize one of the workarounds above. You should replace the extension after the workaround has been implemented.
Published Date: Feb 18, 2012