Just got a new DP cable since I broke my old one yanking it out of the monitor (was one of those push and pull ones that just did not want to come out). Go to plug it in, I get a screen, but now I'm locked in a 100hz in both windows and the nvidia control panel. Monitor is an ASUS VG248. Are some DP cables not capable of 144? I tried to also create a custom resolution in the nvidia control panel, but after hitting "test" it still said 60hz and so did windows.