Hello, just a quick post to report that I probably found the cause of my BSODs: it was the ALPS Touchpad Driver 8.101 (for Windows 8 only). I didn't get any other bugchecks after I've uninstalled said driver and also found out that a previous version 8.100 works fine, you can find it here: http://www.eightforums.com/drivers-hardware/10569-windows-8-alps-touchpad-driver.html (I've installed the fujitsu one). Two other things I've discovered: 1. immersive (metro) apps seemingly don't use DXVA. 2. if you install the Windows 8 Hyper-V client component DXVA is broken everywhere (WMP, MPC, flash, etc.); I don't know why.. I won't try the new beta driver, for now everything works fine for me with 13.1 + 11.12.