a. Kindly check if you are using the latest driver and Avermedia software by going to our website. (http://www.avermedia.com/avertv/Support/Download.aspx?Type=APDriver&tab=APDriver&id=499)
b. Check the HDMI or Component cables by having the external device connected to your standard TV or have another external device connected to the tuner.
c. Kindly go to your motherboard’s website and check if there is any Bios update available for your motherboard