Hello, i bought a HDMI cable today and hooked everything up, turned PS3 on and went to the display settings menu (using the old red, yellow, and white wire hook up) and changed it to HDMI and it says something about the screen will go blank then in 30 seconds if it returns to the same screen it is not hooked up correctly well ive tried many times and still the same result, faulty cable or am i missing a step?