we set up a new workstation. the workstation keeps going into system standby in 15 minutes (which we want it @ never). when i log in as the user's account, it won't let me change any of the options. then i log in with the admin's account and change it. well it only changes it for when i log in as admin. when i log back in with the user's account, it's still not changed. how can i change it for the user?