I just bought a panasonic upconverting dvd player...when i used a cheap 2$ hdmi cable i bought off ebay the picture is HORRIBLE...it's worse than composite...i tried componet cable and same thing...but when i used an S-Video cable the picture was a nice crisp 480p.....i even took the dvd player back for another one and same thing!! Do i need to purchase a better hdmi cable?? i have it hooked up to a samsung 46" lcd....thanks