Classic support for network (AD) users

Thank you for your article on authenticating to Active Directory.? Have you run across the problem of these Active Directory "network" users being unable to run Classic, and Mac OS9 applications?? It appears to be a permissions related issue that only occurs to these network users (not local users on the machine).? I've followed the steps in the article, including mapping the user's primary group ID to 20 to put all these network users into the staff group. Any idea of the issue at play here, or how to correct it so that these Active Directory authenticated users can run Classic & OS9 applications?