I seem to be having trouble getting 1080i inputs to show up on my Sony 36" FD Trinitron WEGA HDTV. I am using a DVI-HDMI cable running through my ATI Radeon 9800XT. 480p and 720p resolution work great with no problems whatsoever but whenever I move up to 1080i it results in a blank screen. I have updated my Catalyst drivers to the recent 5.8 version.