I am new to HT. The Infocus folks advised that the X1 is a native 4:3. I'd like to get a 92" diag. screen 16:9 Will there be a problem with this when playing DVD's? HDTV? Appreciate the feedback from all you seasoned vets out there. Also, can someone please explain the difference between 480i and 480p and how it relates to DVD players, X-boxes, etc. Muchas gracias!