OK, I am going crazy here.....
I just updated to 385.69 the latest driver....
Now, when I start Mastercam my system automatically turns off the Aero Desktop......previously, there was a setting you can set to turn it off...on this system I have always run with it on and it didn't affect me...so I am looking through the Nvidia Control panel and can find nothing...
Does anyone have a hint how I can disable this feature?