Hi! I have a late 2010 model Macbook pro, 13". I recently bought a Dynex flatscreen LCD, 26". I also have an old HDMI cord and an adapter that came with the TV - unfortunately I don't know what model it is. When I plug the HDMI to the TV, and into the mini display port adapter, my screen turns blue. I also have the display settings in the menu bar *it identifies that I am connected to the LCD TV. However, on the TV, it continues to say "no signal". I'm not sure what is wrong... since my laptop recognizes that I am connected, I don't think it's a simple matter of jimmying the cords. Help, please and thank you?!