Corsair HX 520
I would have expected to see the same thing with my old monitor if it was anything to do with the computer.
Not fussed any more. It's done it again today when I got home from work, I managed to get video's of it which I will forward on, so I am confident I can just get a refund thankfully. Hyundai tech support doesn't seem overly brilliant.
Going to get the Hazro I think
That was the one I had my heart set on in the first place, but went with this as it was £100 cheaper, and I thought I would be fine with a VA panel. To be fair, I probably would be fine with a VA panel. It's just this one that's faulty. But meh, the Hazro isn't much more.
Happy days!