Since October 19, DTV has sent me 3 different HR20 receiver units and with each one, the remote control locks up and quits working for about 24 hours. Next day, it will work for an hour - then quit again. I gave up and had DTV come and take out the unit and reinstall my faithful TIVO. Does anyone know if new software updates will fix this problem? DTV techs say their records don't show this as being a "problem." They also said the major software updates won't be out for another 6 weeks. Has anyone else let them know about the remote control lock up issue?