Update on the system crashes/restarts and warm Windows restarts I encountered last Thursday.
Using the WhoCrashed program, I have now been able to read the several dumps that occurred whilst using the VEAI 3.0.0.1.b beta and attempting to run Windows Power Shell Admin. WhoCrashed reports repeated error entries from that time by the Nvidia Video Driver and the DirectX kernel. - Perhaps this may help explain part of the slow performance problem, to0. (I hope)
I also read that Nvidia has released a new driver set over the weekend fixing several problems.
Accordingly, I will do a clean reinstall of my Nvidia Drivers. I will also do a reinstall of the VEAI beta, enable detailed logging and see if I can duplicate the problem I had back on Thursday.
I will add something to this post when/if anything happens.