I bought this monitor only 5 months ago and it's been working flawlessly. Right now I'm smashing Doom 3 but since last night the monitor is flickering white lines every 5 seconds. It's connected via DisplayPort to my 2070 Super. I tried HDMI, another computer, different cables. The only thing that fixed it was turning off "overclocking" ie reducing the refresh rate to 100Hz. The thing I'm worried about is the fault only occurs if the monitor is "overclocking" - is this a way for Asus to get out of the warranty?