I prefer to have Native "on" on all of my receivers. If I have Native set to "on" with the Vizio (in my sig) and change channels on the H24 I lose video if the resolution changes. According to the Vizio site: Native Panel Resolution: 1366 x 768 Signal Compatibility: 480i (SDTV), 480P (EDTV), 720P (HDTV), 1080i (HDTV) Interestingly, that seems to indicate that the tv isnt 1080p compatible, but if I choose it on the H24 it shows that it is. I end up keeping Native "off" and only 720p selected and dont have a problem. So the question is; is it the TV or a bad HDMI cable. I am more curious than anything especially since my mom bought a Phillips 55" and initially had it connected (Time Warner) with component cables and ran into the same problem until she switched to HDMI.