The problem can be reproduced as follows:
- Click on the document window.
- Select the text tool and type some text.
- Then, while the text box is still active, click on the library window.
- Now click back on the document window.
The machine will either freeze, or you'll get a bomb, ID=25 or so.
Note: This issue has been corrected in MacDraw II 1.0v4.
Workaround:
Until a new version of MacDraw II can be obtained, always click outside the text block before you access the library.