You're gonna hate this, but you need to do a complete Windows reinstall. If you installed Windows with hyperthreading on, you installed it in a "multiprocessor" mode, and simply disabling it in BIOS won't work. You need to first disable hyperthreading in BIOS, then reinstall Windows in single processor mode.
Joe

Wow. Is Digi's Pro-tools not up-to-date with PC Hardware, or what? I had no idea, but I'm a Nuendo user ;) .

:cool: