Hi,

Since about a month I've been seeing horizontal lines flickering on my screen. It's bad when the monitor is just turned on and becomes less after a while. The problem gets gradually worse. It is also much worse on a dark or strongly colored background than on a bright background. I've had the monitor for years without issues. No hardware changes lately, cables have been checked, etc. I do all updates on firmware (NVIDIA GeForce GTX 970), Windows, etc. Any ideas what the problem might be? Worn out? Drivers?