A technician receives a report from a client that is having issues with colors on a monitor. The technician notices that the monitor does not appear to have any red hues. The technician sees that the monitor has two types of inputs, VGA is currently in use, and the HDMI cable is not. The technician powers down the system and switches from using the VGA cable to the HDMI cable and the issue is resolved. Which of the following was MOST likely the issue?