Hi all, Just finished building my new Z370 system and the only thing which is acting weird is the motherboard's HDMI port. When plugging in the cable it's all fine and posts a perfect image. However, the screen flashes black every so often. It's quite random and doesn't seem to be a result of CPU or GPU loads. Also, it tends to happen rarely. Please note, I'm connecting to an ultrawide 3440x1440 monitor. I think the issue has stopped when dropping the resolution down to 2560x1080. Do you think the HDMI port has a fault, or could be a software/monitor issue not liking the 3440x1440 resolution at 30Hz?