[SmG Nukem]

I know this is a bump but it follows on from the previous posts.

I bought an RX580 and it works fine except sometimes when I play games I get a green screen for a couple of seconds during play.
If I view a replay then the green screen is not evident so I have to assume that it is either the video card settings or something else in the video line.
My monitor is connected via HDMI and it has no other connection I can use.
I am using the latest video card drivers and have tried earlier versions as well.

Any ideas as to a possible cause?