View that filters own content per author

I have created a page view that filters one type of content per author that created the content so people can see their own content in their profile. It's included in the user profile as a tab. As admin it works fine in my profile and it even works when I go to someone else his profile. However, when I log in as a 'normal' user, I always get the custom message that I've given when there are no results available. Am I missing something? Anyone has any ideas how to solve this or what might be the problem here?

Thanks!