Why doesn't text wrap work in callouts?

In Draw (5.2.4 and earlier) the property dialogue for callout box offers a text (word) wrap option. Checking it, i.e. turning it on has not effect.

How can I get it to work?

I don’t have an answer but I want to know if you ever solved this. I am having the same issue.

Version: 6.4.4.2

This is not an answer. Move it into a comment under the question and add a link to your own question. Otherwise, this question will be considered answered and solved.