I just got a Dynex 26''720p LCDHDTV and when I play my 360 on it the graphics look like crap. The edges of objects are jagged and the graphics look blurry and undefined. Everything is connected properly, the display setting is set to 720p, andI am using component cables. Would the graphics enhance if I used an HDMI cable instead of component cables? Is this TV not suited for playing games?