This has just occurred.
I was looking at KToopi's post of "Boys will be boys" and noticed some weird green squiggle on the photo. Thought it must have been in PP (sorry KT).
I then looked at the below shot, Terry's fine Kooka, and there was the squiggle again. ### ????
I looked at some other shots and it wasn't visible.
Has to be some sort of gliche with my new Video Card's driver. I'm in the process of downloading the latest driver (I will have to force Windows to update it) and see how that goes.