I just had to replace one DVR510 4 months ago and now another one has gone down, I can't record or change channels. I am paying lease fees and dvr sevice fees. I am tired of paying Dish money I had to pay $50 for shipping and what else I don't remember to replace the last one. This Dish equipment don't know why I have to pay anything because the equipment went bad. Do you have any suggetions about what I should do including should I upgrade Dvrs.I'm not going to pay any more money to Dish I would rather go to cable. Thanks for any help