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. Updates have been incorporated into SP1 to ensure that connections between Windows 7 computers and HDMI audio devices are consistently maintained.
Sorry neither for me, too. Seems like Windows Setup swtched default audio device to SPDIF. With SPDIF it comes alwasys back to FS (but stops TV). With default HDMI the error is back again.
I won't put much hope in Mantis. Realease date for the Version wit a fix is like 2025 or so