I need some help from the experts. I recently upgraded to a Panasonic TH-42PX75U Plasma HDTV, 720p. I also upgraded my DirecTV receiver to a H21-200 model. I hooked the receiver to the TV with an HDMI cable and set the receiver to native resolution. The problem is that when changing channels there is a significant delay, almost 7 seconds before a picture appears. When I turned Native off the delay is much shorter. A few questions regarding this: 1. Will a different receiver give better performance? 2. Is there anything I can do on either the TV or the receiver to make it faster while in Native format? 3. If the only answer is to keep Native turned off, what should I have the resolution set to so I will get the best results, 720p or 1080i? Any other info you can add would be helpful. Thanks so much!! Chris