Just got a new 48 inch LG HDTV and tried to connect it into my computer with a HDMI cable. The problem is my tv seems to detect my computer but my computer is not detecting my tv. I have tried connecting the HDMI cable to both ports on the my tv with the same results. My computer is a Sony VAIO L series All-In-One. Any and all suggestions would be helpful. Thank you for your time.