Disable temporary user profile on workstations in a Windows 2008 env

I have a Windows 2008 domain with +/- 27 workstations. The users have all roaming profiles, but this doesn't work sometimes. What results in that the user is logging in with a temp user profile instead.

Is there a way to disable the temp user profile? In my opinion it's useless to have a temp user profile because the user doesn't get his/hers work files, so they are unable to work..

Solution 1:

Use the group policy setting "Do not log users on with temporary profiles", to be found in Computer Configuration -> Policies -> Administrative Templates-> System -> User Profiles.