OK, I would have expected a product like that to work. Remember that when the HDMI is converted to component, you now have an analog signal, not digital. The DVI connection remains in the digital realm, so what's likely happening there is the Roku is sending a 1080p signal and the TV can't process it. The analog/component connection should not have that issue, but for whatever reason the TV isn't processing it. And my guess is it's the TV's issue, not the converter.