I have a Philips Plasma Flat Screen Monitor, model #32FD9954. I plugged it in and the screen is black when I turn it on. Also when I pressed the power button, the "on" light was red? Is that correct? I plugged my Mac in to the back panel, using the power cord that I would use to connect my mac to a desktop monitor, and NO picture appeared on my screen. My question is, how do I hook up my computer? Do I need to use other connections, other than my standard computer cords?