I updated my Xbox Media Center last night, and set the GUI resolution to 1080i, the PQ was stunning and was way better than I expected. This is the first time I've seen the Xbox running this resolution (I think it was running 480p before the update). My problem is that when I run my PC via DVI at 1080i, the PQ is a bit crap; in Windows the font is barely readable (although admittedly I have not enabled large fonts), this I could cope with except the Media Center GUI is utterly appaling - very pixellated. It looks really poor. So can anyone give me any suggestions as to why the PC 1080i quality is so bad?