I have a similar issue. THere is constant 'noise' (white bars moving across the screen and sometimes the screen will 'roll'). I have posted about this issue in the past and people pointed to my tv. I have a Sony 57" CRT RPTV. I have had the TV looked at. I have had the 360 replaced under warranty twice and have tried 2 different component cables. I have narrowed it down to two things, but I'm still confused. I have a Scientific Atlanta 8300HD cable DVR provided by Bright House. It has also been replaced and I have had it connected with component cables at one time and HDMI at a different time. In addition to all that, I used to use a Pelican HD selector box, but have recently purchased a Sony STR-DG1000 A/V Receiver and am able to run most of my devices through that. THe cable box is connected via HDMI to the receiver and the receiver connects to the TV by HDMI. The 360 is connected directly to the TV via component. Previously they were both routed through the Pelican box via component video. WIth both devices connected, I get major interference on the input the 360 is hooked up and minor interference on the other inputs. If I disconnect the cable box, all is well. If I disconnect the 360, all is well. SInce everything has been replaced, I'm really not sure what the problem is, but it is quite annoying. Any ideas? Feel free to ask questions as I'm sure there will be some.