Hulu won't display over component connection?

When I initially hooked up the WD via component I got the same type of distorted scrolling screen. I had to connect it via composite and change the output to 1080i and then it worked fine via component. Netflix works fine but not Hulu. I am guessing it is some kind of DRM thing because I have read that is why all companies push HDMI. I haven’t seen anyone else reporting the same problem, I would think it would be common for anyone else using component and Hulu.