It's happened a few times now.
Once and a while, sim locks up inflight. Able to Alt-f4 out to desktop. I could be flying for one minute to 15 minutes or more.
Re-starting AH, a small white rectangle pops up and disappears (resolution change?) then instead of the HTC background and Clipboard, I get a blackout. Alt-f4 returns to desktop.
MoBo temps at 93-95F. Running V2 in SLI. Doesn't seem to be heat related. Otherwise after a reboot it would still persist.
Ichi