Well, Eureka, this time after restarting it's back!
Driver version 442.23
Is that the latest, a good one? So useless. It was 419.17 before so I assume it's newer at least.
Trying if that game will load now...
It works!!! It loads at least, I had a bit over an hour to play, spend 2 hours trying to get it to run :/ Hopefully it will still work next time.