Permissions trouble with OA 1.0-beta9

Hello,

Once Answers fearture is enabled i've two issues when i'm logged as admin user (full privileges) :

- mysite/group/answers give me an ampty page with no button "add question"
- if i use create content > question i still have on mysite/group/answers emptya page with "Please add your first Question to get started."
- if i use answer node url directly like node/node_number i 've "You are not authorized to access this page." (even if i'm admin)

I guess something went wrong during feature installation (but status is ok) and maybe there are some specific permissions needed ?

Thanks for help !