my box was manufactured august 2012 made in china, i bought it january 2013 it just stopped working: when off [red light],when it powers on [green light] with/without factory remote. but no signal/search/menu/start/ >[black sreen] and the remote will not turn it off, the input ch. is still the same as was working before. please help how long do they last ,,,,very dissapointed