I would first like to apologies if this is in the wrong place. I have a mac book pro (10.6.4) and I have all the cables I need to hook it up. (Mini display port to DVI and HDMI to DVI cable) with a 20-inch LG HDTV. But the problem is when I hook it up the screen on the tv only shows a background. How do I solve this? Picture at: http://img69.imageshack.us/img69/5529/20100806174855.jpg Thanks a lot for your help.