Peter, that should be answered in that thread. I was hoping that linking to it would be enough to keep me from having to repost everything, but I guess I will just have to. I'm running Windows 8 RP 64-bit. It is not a problem with the RP since v6 of 360 worked fine on it. Also, my Nvidia GTX 460 drivers are up to date as of this writing (v306.23). Here is what is happening:
Open Vault window:
Settings window:
I have also rerun dxdiag and attached the txt file.
As Tim Lopez was dealing with you already in the beta forum, and I have seen this reported elsewhere since the official release, I guess we will have to wait for an update to be released.
Keep running LiveUpdate and hope it gets fixed soon.