Hi. I had an HDMI cord for my PC for over a year and it started flickering one day. It would turn black for a sec or 2 and then resume. It started happening frequently and then just died. I tested the cable on multiple things to my TV and confirmed the cable was shot. I just bought a new cable and its happening again after like a month, turning the screen black for a couple of seconds randomly throughout the day. I have even reformatted my PC. Why would this happen? Is my video card going out or shorting out? I don’t have any sound going to or through the monitor so I don’t know what else it would be or why this would happen? What should I do?