Some Roku customers on the Roku Forum are reporting that they are only getting low quality video on their Netflix Player. I tested a few movies this morning, and I got 4 dots each time:
Tip from the Roku forum: How to get into debug mode on your Neflix Player: "To enter debug mode, all keypresses about 1/2 second a part. Hit HOME 5 times, Rew 3 times, FF 2 times. You should then be in debug mode. It may take a couple tries to get it."
Are you having problems with your Netflix Player?