
Updates have been incorporated into SP1 to ensure that connections between Windows 7 computers and HDMI audio devices are consistently maintained.
Improved HDMI audio device performance : A small percentage of users have reported issues in which the connection between computers running Windows 7 and HDMI audio devices can be lost after system reboots. This change enhances platform interoperability, and improves the ability to communicate identity and authentication information between organizations.
Additional support for communication with third-party federation services : Additional support has been added to allow Windows 7 clients to effectively communicate with third-party identity federation services (those supporting the WS-Federation passive profile protocol).