Hi, In my app I would like to show the display picture of the user's friends. So far, the easiest way I found to do it would be to make /v1/users/usernumber.json request for each user ID of their friends, but I keep getting the oauth_problem=permission_denied. Why have I got a permission denied error? According to the API docs (which aren't very clear) it appears to say that you can make this request on most public profiles. So? If anyone has a simpler solution I'm happy to live with that but I'd like to know how to make this (/v1/user/#.json) request on a user's friends. Thanks.