Impossible to access my own node

Hi,
I have an issue, don't know if this is a workspace bug or something I did wrong... when I create a news article, and I do not publish it yet, so I can see it in my workspace.
But if I try to view this article I cannot access the page, I have an access forbidden message.
To let the user accessing its own not published articles I have to allow him "administer nodes" but I don't like that :)

What can I do ?

Thanks