[cheesegrits]

I'm not sure why you'd be expecting profile fields to be in a $post array on the profile page. Just use $userinfo['field10'].

Remember that what works in one template may not work in another. In this case, you may have used $post['field10'] in something like a postbit, called via showthread.php ... because showthread.php sets up that $post[] array to include all kinds of useful information sepcific to a given post. But MEMBERINFO is called from profile.php, which knows nothing about forum posts, and doesn't set up a $post[] array.

-- hugh