My New PX 277 monitor seemed like it was working fine. That is until Radeon Software crashed randomly without warning. After the crash Windows wouldn't recognize that my monitor was 144Hz. It only listed 30/60Hz available. I went into Radeon Settings and it recognized my monitor only as a 60Hz monitor too when it is in fact 144Hz. I tried everything from uninstalling drivers to changing my Display Port cable but the issue remains.