THis is a starnge one, I'm using an X1 with a dish 6000 receiver. I have no issues at all with my reciver in 480i, or with my dvd player 480p to my x1, all is well. However, when I send 1080i via vga cable to my x1 (software 4.1), sometimes it's missing like 2 inches of the image vertically on the right side of the screen only. I project on a 92" 16x9 screen, and once again sometimes when I turn on the x1 in 1080i mode only, I'm missing 2" or so of the image on the right side. Sometimes, by turning off and on the x1 it fixes the problem and fills my screen completely, sometimes by switching inputs from video1 to computer and back and forth a few times it fix's the problem also.. ANY IDEAS? I've tried 3 dish 6000 receivers and all do the same thing. I have had no sync issues at all.