Sorry I just checked now & found the software version is 2.99. But I remember it as 3.02 previously (don't know if I just overlooked it or dish tv downgraded it automatically). And yes, I'm also facing same issue with resolution as like you. You are taking about resolution setting in menu > Mydishtv > audio & video > HDMI > Resolution ? Right? It was set at 720 * 50 hz. I changed it to higher, but again going back to 720 when I shutdown & restart.
BTW, what is the correct resolution for a 43 inch Full HD led tv? 1080i * 50hz, 1080p * 50hz, 1080i *60hz, 1080p * 60hz? Which one to experience the best picture quality & sound?