AppleScript: Apple Event Manager Not Loading

I have a Quadra 800 running System 7.1, Apple Event Manager 1.0.1 and AppleScript 1.0.

Occasionally, on startup, the Apple Event Manager has an red "X" through it, indicating that it's not loading. When this happens there seems to be extra disk activity (after a normal restart) preceding the red "X". Rebooting does not clear up the problem.

Using the Extension Manager (from Apple) to disable all but these two extensions does not clear it up. I have found that to clear this up, I must reset PRAM and reboot twice! On the first reboot the Apple Event Manager does not load properly. I reset 32-bit addressing and cache size in the Memory Control Panel as well as other settings cleared by resetting the PRAM. On the next startup the Apple Event Manager initialized properly.

What conditions cause this extension not to load?

Engineering has released version 1.0.3 of the Apple Event Manager which corrects the problem described above. Please be sure to remove all other copies of the Apple Event Manager (note the space in front of the name - a customer might drag 1.0.3 into his Extensions folder, thinking it would replace the older version, but it wouldn't because of the filename difference).

Please note that this problem goes away with AppleScript 1.1, because the functionality of the Apple Event Manager extension has been rolled into the AppleScript extension.