borders

Hello everyone, I am having a strange issue with my new G-Master GB2760QSU "Red Eagle" Iiyama monitor. Its a 27Inch one with 144Hz, 1ms, 2560x1440 resoltuion. My setup: CPU: I5-9600k GPU: Nvidia GTX 1060 3GB RAM: 16GB I have these black borders on all the sides except at the bottom. At first...