I have my new MBP hooked up to my 37" Westinghouse 1080p TV. I used to play wow on my PC on this TV at 1080p no problems. But now when I select 1920x1080 resolution in WoW video settings from my Mac, the TV reports 1080i (interlaced) and looks horrible. If I quit WoW and go back to my desktop the TV reports 1080p resolution. How do I run it in true 1080p like I used to on my PC??