software loading - DirecTV DVR

For software loading, relating to DirecTV DVRs and receivers. lost picture and message came up
"found new software"

software loading,
but loading bar stays at 0% for quite awhile.then changes to new message,
unable to load, press red button under door, did all that about 6 times nothing, unplugged the unit first time ,again nothing did everything again, still nothing, unplugged unit for about an hour, and did everything again, to no avail, which is why I am here


p.s. Units were installed on the 15th of feb 2006