Hopefully someone here is able to shed some light on why this might be happening all of a sudden. I got a new GPU about 6 weeks ago (Geforce GTX 1050). So far its been working like a charm in my older PC. But yesterday seemingly out of the blue when playing PUBG it started acting up. You can see from the images below that there is this weird green/red outline to a lot of shapes/colours. It only happened at first when I was inside buildings in game. Then it happened outside too when I was moving fast. I thought maybe it was an issue with the latest game update or my drivers. Updated my drivers today and it not only persists, but I'm noticing it in other things too like when using windows. For example, if I got to restart or shut down my PC, for a brief second when I click the restart or shut down tabs they flash the green/red ... and now when watching certain videos, whether it be games on Twitch or things on youtube, the green/red is showing up on the videos. So I feel like there is some kind of graphic card issue maybe? Or maybe its the monitor? I don't really know how I truly go about testing/fixing/isolating such a problem.
Here are a couple of still shots I took in-game:
When I tried taking screen shots it wouldn't show up, my character had to be moving for it to appear. So i took these with my phone. First one is really noticable, second one you can see it on the green on the skirting boards near the top of the wall where it should be white, and on the roof there is red where the wall paper is ripped away, which should be whiteish too.
Any idea why this would suddenly be an issue if it is the GPU after at least a month of flawless use?