The most common cause of this problem is the loose monitor cable. Check the connection from the monitor to the back of the system. It is also possible the monitor is connected to the wrong port on the back of the system. Refer to the included setup poster to ensure the monitor is connected to the correct port.
In some rare instances, the video card or another internal component can be unseated during transit. The common symptom of an unseated video card is a series of 4 beeps when you turn the system on. Please contact our technical support department if you suspect the problem to be related to a loose part.