After sorting out the geometry I've come across another problem! I got the TV primarily for use with my Xbox 360 at 1080i, and it does indeed look amazing - at first. After a few minutes play though I get this faint diagonal inteference pattern all over the screen, as if I'm watching an analog TV signal that isn't quite tuned in properly. 480p is fine. Sometimes the inteference will go away again, and sometimes it won't appear in the first place, but usually it seems to 'build up' from when i first turn the console on. I'm using the official microsoft component cable and I can't see anything nearby that would intefere with the signal. Any ideas?