Here's how I run Squeak on my MacOS 8.6 G3.
I take a standard download, close the windows I don't want,
set the Preferences I like, and save a new image.
I drag the new image to DragThing and drop it there.
Then whenever I want to run Squeak, I click on the icon in DragThing.

This used to work with no problems, but starting with I think 3.2
it sometimes displays the image as if I'd done "open|file".
Does anyone know why this happens and how to control it?

It's a minor irritation rather than a real problem.