White Screen (Of Death?)

I'll just copy this from my EVGA forums post:

Hi all, recently I purchased a GTX 970 SSC.  I run two monitors, of different resolutions.  On my old evga 570 I ran a DVI and a old VGA cable. 
 
The 970 doesn't have VGA support so I've got an DVI to VGA adapter for one monitor and HDMI cable for my main monitor.
 
It's been great so far.  Tonight I was using Microsoft Flight Sim X and I got a white screen.  The smaller #2 monitor was still showing the web pages I had up, after a few mins it went to a black screen.  Monitor wasn't off but the screen went black.  My main screen stayed white until I powered off the PC.  With MSFS FSX I use nvidia inspector custom profiles....  custom but what most other FSX users use.
 
I checked MS Event Viewer (eventvwr in the Run dialog), and no errors showed up.  I happened to be simming online, connected to a voice server and I could still hear the other people online while my screen was white (and while the second monitor turned black).
 
I've got no clue if this is a virus (ran MWB and MS Safety Scanner).  MWB picked up some adaware junk, just two files within Chrome browser, that's all.
 
Any clues to what could be wrong?