A:Answer Hi there. Thank you for your inquiry. The LG OLED77G3PUA is designed for exceptional gaming experiences, but some users have reported issues with running the TV at 144Hz with PCs, experiencing blacked-out screens or crashes while gaming. These issues can often be related to settings and compatibility with the Connect Box. To address these problems, ensure your TV has the latest firmware installed, use a high-quality HDMI 2.1 cable, update your PC's graphics card drivers, and check and adjust the TV’s settings, such as the refresh rate and resolution. If the issue persists, please send us a private message on Social Media @LGUSSupport. Our team will be more than happy to explore possible solutions and provide further assistance. We appreciate your patience. —Renzo