Several times over the last couple years I have received an error “check HDMI-IN cable” in the middle of working. Now, it has happened 5 times in two days. There is no HDMI cable and never has been; it’s an all in one with nothing else connected. The error turns the screen black and I am unable to do anything besides hard reboot. This is getting old, and I am hoping there is a fix. Thanks in advance.