Q&A Not Respecting Capabilities

Q&A V 1.0.8
WP 3.3.1

An author can edit others questions and answers even though author capabilities specifically say not to allow it. Also the visitor capabilities options do not exist at all. (I think this issue is known).

An author can edit an administrators questions and answers even with the settings below

in the settings, authors capabilities have these checked
View questions.
Ask questions.
Edit questions.
Subscribe to new questions.
View answers.
Add answers.
Edit answers.

I do NOT have checked
Edit others' answers.
Edit others' questions