I have a non-HDMI Xbox 360 that is connected (via component cable) to a new Onkyo SR605 receiver. The receiver has the ability to convert component inputs to HDMI output. My television is a 1080p Panasonic plamsa. When I choose the "1080p" resolution selection on the Xbox 360, it goes blank, and then goes back to 1080i. I have not updated the "system update" since I bought the system back in Dec 2006. Does the Xbox 360 have the ability to output 1080p over component? I thought I read that it did, but when I try, I get a blank screen. If I update my "system software" to the May 2007 update, will that fix the problem?