After uploading a DX file it was pointed out to me that my system has also been "hit" by a Win 10 update & NVidia drivers. One idea is to go to system restore then "roll back" your system. I found that I couldn't "roll back" my system far enough to find a re-install what worked. After checking the usual self-appointed online gurus, I finally found out what I needed to know.
I knew I needed an NVidia driver but I struggled to find the correct page for their older drivers. Just in case anyone else is having the same problem, here is a link to the NVidia web page for "older drivers" http://www.nvidia.com/drivers/beta . I don't know about anyone else, maybe your system has all the functionality with the latest drivers but mine certainly doesn't.
I picked an old driver that I knew worked well for me. More importantly I installed it using the "Custom Installation" selection which I hadn’t used before. The custom installation selection offers you the chance to do a clean install of the driver and resets any settings you may have on your system!
A video that may also help you https://youtu.be/3ulQYC_HP9s
Hope it you find this info helpful.
Cheers
Dave F.
This message was edited 1 time. Last update was at Oct 29. 2017 19:09