Attn: Rottydaddy

Per your suggestion, removed the 8800 card and uninstalled the driver 191.07.
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=20&t=57739
From what I've read, it appears at least one in ten nVidia owners are having problems-- it's good to not be alone.
As, I'm sure, have many others.Not to rub it in, but I have had nothing but really good results with every nVidia card I've ever used.
At least we're both ScottishWish i could help more, but like i said, im no expert.