As the title says I have a PG348Q 21:9 100hz monitor. But if I try OC'ing it to above 75hz my desktop is altered. My taskbar, which is normally on the left is put on the bottom and no matter what I try to do no apps or windows can be seen on my monitor (but the desktop itself is there). To add, my GPU is a Asus Rog Strix 1080ti Gaming and I'm connected by Displayport.
I do have a HDMI connected to the GPU for my TV but the TV is off. That said Nvidia Control panel (which for some reason is oversized) does show my TV (OLED LG C8).
So does anyone know what's up? Is the monitor faulty? Is the cable (which is supposed to be certified with the DP logo and 1.2) faulty or incorrect. Any help would be greatly appreciated.