please help, I have a video card with tv output. I have sent the signal to my TV. It only has jacks in the front of the set and an antenna in on the back. I setup my system to show my desktop on my tv--- can't believe how lo-res it is---- and it shows up ok, but the dvd movie flickers and is only in black and white. I was told that this is from macrovision. Is there a way to defeat the macrovision?