Yes, To ensure proper operation and file management, Pro Tools 6.0 software must be installed in an administrator-level accountin Mac OS X. In addition, to ensure that access to all plug-ins from within Pro Tools, it is recommended that the Pro Tools application and all Pro Tools plug-ins be installed and used from the same administrator-level account. Do not install or operate Pro Tools while logged in as a root-level user. File permissions of a root-level user make it possible to perform actions that may conflict with Pro Tools file management tasks.