We just got an Panasonic SA-PT760 Surround Sound upscaling DVD player. The problem we are having is that while viewing DVDs over HDMI (720p), the image is very grainy and ghosted. Now when we switched to component (480p), the image looks 10x better and more clear, even at a lower resolution. THe HDMI cable is good because we tested it with our hi-def satelite signal and it looks very crisp on 720p.
The TV is a Vizio VX32L.