As of recently, I've been having trouble getting HD to work on my Neflix.
I use IE so I can stream in 1080p, but it seems the "HD" button on the Silerlight player has vanished and I evidently cannot get HD video.
Now I've already looked this up and you can force HD by using hotkeys on the player, what I'm not so sure of is which number I'm supposed to manually lock it at.
Right now, I have it set to play at the highest buffering rate assuming that's HD - hopefully 1080p.