I can’t for the life of me get vorpX to work with the 64 bit version of WoW. And when I load the 32 bit version I get:
Head tracking init failed. Tracking will not be available. There might be other programs open that try to access the tracker. Also please check the USB connection of your Rift.
To which I’ve noticed Windows is now guiding my mouse with my head movements and I’m thinking that’s the issue with the head tracking error.
A. No other programs that access the Rift tracker (may also be a crashed one, rebooting would definitely help in that case), and
B. In case you have the new Oculus runtime installed, make sure that DK1 legace app support is installed, or uninstall the runtime. Tracker access is handled quite different now, so the runtime might cause a conflict.